README FIRST!
Command AntiVirus(tm) for Microsoft(r) Exchange
NOTE:  This version is for ONLY Microsoft(r) Exchange Version 5.5 
       with Service Pack 3 or higher. A separate version is available 
       for all previous Microsoft Exchange 5x versions.
Please read the Multi-Platform Quick Start Guide that is included 
with the installation files. It provides installation instructions 
and an overview of Command AntiVirus for all platforms. 
The MQCKST.PDF file contains the Multi-Platform Quick Start Guide.
This file can be read with the Adobe(r) Acrobat(r) Reader that is
included on the Command AntiVirus CD. For instructions on how to 
install Acrobat Reader, see the README.TXT file that is located 
in the ADOBE folder on the CD.
Acrobat Reader is not included with the downloadable versions 
of Command AntiVirus. You can download Acrobat Reader from 
Adobe Systems Incorporated through our web site at 
http://www.commandsoftware.com/service/tc-viewutil.html.
A Release Notes section is provided for each release. It contains 
the following topics:
*  Special Notes - contains important pre- and post-installation 
   information that pertains to the release.
*  Product Enhancements - contains information about new virus
   signatures, scan engine improvements, and new features.
*  Fixes - contains updated information on previously reported
   problems that have been fixed.  
===================================================================
RELEASE NOTES
Notes on Command AntiVirus for Exchange (CSAV) Version 2.51
27 February 2003
SPECIAL NOTES 
*  This version is for ONLY Microsoft(r) Exchange Version 5.5 with
   Service Pack 3 or higher. A separate version is available for all 
   previous Microsoft Exchange 5x versions.
*  NOTE:  We highly recommend that you install Service Pack 4 for 
          Exchange Server 5.5. 
          This service pack fixes the problem that AVAPI had with the 
          Exchange Information Store.
          This service pack also fixes the following problems that 
          occurred on Command AntiVirus for Microsoft Exchange 
          Version 2.41:
          *  Not allowing the attachments to be opened.
          *  Periodic shutdown of On-access scanning. 
*  Warning:  If you have a previous version of Command 
   AntiVirus for Exchange installed, you MUST first uninstall 
   and then restart the server before continuing with this 
   installation. 
PRODUCT ENHANCEMENTS
*  New virus signatures have been added in this release.
FIXES
* Some customers reported that on-demands scans are not
  scanning mailboxes and public folders. This has been 
  fixed.
_____________________________________________
RELEASE NOTES
Notes on Command AntiVirus for Exchange (CSAV) Version 2.50
13 January 2003
SPECIAL NOTES 
*  This version is for ONLY Microsoft(r) Exchange Version 5.5 with
   Service Pack 3 or higher. A separate version is available for all 
   previous Microsoft Exchange 5x versions.
*  NOTE:  We highly recommend that you install Service Pack 4 for 
          Exchange Server 5.5. 
          This service pack fixes the problem that AVAPI had with the 
          Exchange Information Store.
          This service pack also fixes the following problems that 
          occurred on Command AntiVirus for Microsoft Exchange 
          Version 2.41:
          *  Not allowing the attachments to be opened.
          *  Periodic shutdown of On-access scanning. 
*  If you have Command AntiVirus for Microsoft Exchange Version 2.3x 
   or lower, before you install any later version of Command AntiVirus 
   for Microsoft Exchange, you MUST uninstall the previous versions.
PRODUCT ENHANCEMENTS
*  This version of Command AntiVirus for Microsoft Exchange will NOT
   install on Microsoft Exchange 2000.  
*  Scan engine enhancements have been added to this release:
 -  Detection and deletion of attachments containing W32/Klez.H@mm 
 -  Improved detection of "intended viruses" and corrupted
    virus samples that are frequently found in virus 
    collections but pose no credible threat. 
 -  The scanning speed has been improved 
*  New virus signatures have been added in this release.
*  The following extensions have been added to the default
   extensions. We recommend that you scan ALL files.
   EML  -  Outlook Express MIME-encoded e-mail messages
   WAV  -  Windows Wave files
FIXES
* None for this release.
_____________________________________________
RELEASE NOTES
Notes on Command AntiVirus for Exchange (CSAV) Version 2.48
19 October 2001
SPECIAL NOTES 
*  This version is for ONLY Microsoft(r) Exchange Version 5.5 with
   Service Pack 3 or higher. A separate version is available for all 
   previous Microsoft Exchange 5x versions.
*  NOTE:  We highly recommend that you install Service Pack 4 for 
          Exchange Server 5.5. 
          This service pack fixes the problem that AVAPI had with the 
          Exchange Information Store.
          This service pack also fixes the following problems that 
          occurred on Command AntiVirus for Microsoft Exchange 
          Version 2.41:
          *  Not allowing the attachments to be opened.
          *  Periodic shutdown of On-access scanning. 
*  If you have Command AntiVirus for Microsoft Exchange Version 2.3x or lower, 
   before you install any later version of Command AntiVirus 
   for Microsoft Exchange Version, you MUST uninstall the previous versions.
*  All viruses previously referred to as W95/x are now
   named W32/x. For example, W95/Nimda.A@mm is now 
   called W32/Nimda.A@mm.
   NOTE:  x represents a name variable.
PRODUCT ENHANCEMENTS
*  Scan engine enhancements have been added to this release.
   It is now possible to disinfect some script viruses, 
   for example, HTML files modified by the Nimda virus.   
*  New virus signatures have been added in this release.
FIXES
* Particular types of VBS files caused the scan engine to
  false positive. The number of false positives has been
  decreased in this release.
*  You can now install Command AntiVirus for Microsoft Exchange 
   on the same computer as CSAV for Windows NT Server Version 4.61 
   and higher. Previously, doing so caused a conflict between the 
   two scanners. This condition resulted in an incorrect warning 
   message that displayed repeatedly and caused slowdowns. This 
   has been fixed.
_____________________________________________
RELEASE NOTES
Notes on Command AntiVirus for Exchange (CSAV) Version 2.47
14 September 2001
SPECIAL NOTES 
*  This version is for ONLY Microsoft(r) Exchange Version 5.5 with
   Service Pack 3 or higher. A separate version is available for all 
   previous Microsoft Exchange 5x versions.
*  NOTE:  We highly recommend that you install Service Pack 4 for 
          Exchange Server 5.5. 
          This service pack fixes the problem that AVAPI had with the 
          Exchange Information Store.
          This service pack also fixes the following problems that 
          occurred on Command AntiVirus for Microsoft Exchange 
          Version 2.41:
          *  Not allowing the attachments to be opened.
          *  Periodic shutdown of On-access scanning. 
*  WARNING:  Command AntiVirus for Microsoft Exchange users
   We do NOT recommend installing Command AntiVirus for Microsoft Exchange 
   on the same computer as CSAV for Windows NT Server Version 4.59 and higher. 
   Doing so causes a conflict between the two scanners that are trying to access 
   the same file. This condition results in an incorrect warning message that 
   will display repeatedly and cause slowdowns.
   This is a temporary condition and will be fixed in a future commercial
   release. Again, the products can coexist on the same network but NOT on
   the same computer.
*  If you have Command AntiVirus for Microsoft Exchange Version 2.3x or lower, 
   before you install any later version of Command AntiVirus 
   for Microsoft Exchange Version, you MUST uninstall the previous versions.
PRODUCT ENHANCEMENTS
*  Scan engine enhancements have been added to this release, for 
   example, an ELF scanner has been added to cover Unix(r) viruses
   in native Unix file format.  
   The scan engine has also been enhanced to help detect some 
   corrupted (non-working) samples of the Magistr virus.  
*  New virus signatures have been added in this release.
FIXES
*  None for this release.
_____________________________________________________________
RELEASE NOTES
Notes on Command AntiVirus for Exchange (CSAV) Version 2.46
08/01/01 
SPECIAL NOTES 
*  This version is for ONLY Microsoft(r) Exchange Version 5.5 with
   Service Pack 3 or higher. A separate version is available for all 
   previous Microsoft Exchange 5x versions.
*  NOTE:  We highly recommend that you install Service Pack 4 for 
          Exchange Server 5.5. 
          This service pack fixes the problem that AVAPI had with the 
          Exchange Information Store.
          This service pack also fixes the following problems that 
          occurred on Command AntiVirus for Microsoft Exchange 
          Version 2.41:
          *  Not allowing the attachments to be opened.
          *  Periodic shutdown of On-access scanning. 
*  WARNING:  Command AntiVirus for Microsoft Exchange users
   We do NOT recommend installing Command AntiVirus for Microsoft Exchange 
   on the same computer as CSAV for Windows NT Server Version 4.59 and higher. 
   Doing so causes a conflict between the two scanners that are trying to access 
   the same file. This condition results in an incorrect warning message that 
   will display repeatedly and cause slowdowns.
   This is a temporary condition and will be fixed in a future commercial
   release. Again, the products can coexist on the same network but NOT on
   the same computer.
*  If you have Command AntiVirus for Microsoft Exchange Version 2.3x or lower, 
   before you install any later version of Command AntiVirus 
   for Microsoft Exchange Version, you MUST uninstall the previous versions.
PRODUCT ENHANCEMENTS
*  None for this release.  
FIXES
*  When the Action to be taken for On-Access is set to 'Log infection and 
   continue', Exchange Server doesn't allow the clients to open the 
   message.A customer reported that the default mailbox is being renamed.
   This has been fixed.
_____________________________________________________________
RELEASE NOTES
Notes on Command AntiVirus for Exchange (CSAV) Version 2.45
06/20/01
SPECIAL NOTES
*  This version is for ONLY Microsoft(r) Exchange Version 5.5 with
   Service Pack 3 or higher. A separate version is available for all 
   previous Microsoft Exchange 5x versions.
*  NOTE:  We highly recommend that you install Service Pack 4 for 
          Exchange Server 5.5. 
          This service pack fixes the problem that AVAPI had with the 
          Exchange Information Store.
          This service pack also fixes the following problems that 
          occurred on Command AntiVirus for Microsoft Exchange 
          Version 2.41:
          *  Not allowing the attachments to be opened.
          *  Periodic shutdown of On-access scanning. 
*  WARNING:  Command AntiVirus for Microsoft Exchange users
   We do NOT recommend installing Command AntiVirus for Microsoft Exchange 
   on the same computer as CSAV for Windows NT Server Version 4.59 and higher. 
   Doing so causes a conflict between the two scanners that are trying to access 
   the same file. This condition results in an incorrect warning message that 
   will display repeatedly and cause slowdowns.
   This is a temporary condition and will be fixed in a future commercial
   release. Again, the products can coexist on the same network but NOT on
   the same computer.
*  If you have Command AntiVirus for Microsoft Exchange Version 2.3x or lower, 
   before you install Command AntiVirus for Microsoft Exchange Version 2.44, 
   you MUST uninstall the previous versions.
PRODUCT ENHANCEMENTS
*  None for this release.  
FIXES
*  A customer reported that the default mailbox is being renamed.
   This has been fixed.
_____________________________________________________________
RELEASE NOTES
Notes on Command AntiVirus for Exchange (CSAV) Version 2.44 
04/11/01
SPECIAL NOTES
*  This version is for ONLY Microsoft(r) Exchange Version 5.5 with
   Service Pack 3 or higher. A separate version is available for all 
   previous Microsoft Exchange 5x versions.
*  NOTE:  We highly recommend that you install Service Pack 4 for 
          Exchange Server 5.5. 
          This service pack fixes the problem that AVAPI had with the 
          Exchange Information Store.
          This service pack also fixes the following problems that 
          occurred on Command AntiVirus for Microsoft Exchange 
          Version 2.41:
          *  Not allowing the attachments to be opened.
          *  Periodic shutdown of On-access scanning. 
*  WARNING:  Command AntiVirus for Microsoft Exchange users
   We do NOT recommend installing Command AntiVirus for Microsoft Exchange 
   on the same computer as CSAV for Windows NT Server Version 4.59 and higher. 
   Doing so causes a conflict between the two scanners that are trying to access 
   the same file. This condition results in an incorrect warning message that 
   will display repeatedly and cause slowdowns.
   This is a temporary condition and will be fixed in a future commercial
   release. Again, the products can coexist on the same network but NOT on
   the same computer.
*  If you have Command AntiVirus for Microsoft Exchange Version 2.3x or lower, 
   before you install Command AntiVirus for Microsoft Exchange Version 2.44, 
   you MUST uninstall the previous versions.
PRODUCT ENHANCEMENTS
*  New virus signatures have been added in this release.
*  This release contains the following scan engine enhancements:
   -  Scanning of encrypted VBS files is now supported.
   -  Scanning of Visio files is now supported. Heuristics scanning
      is now in place to help detect unknown Visio viruses. 
   -  Scanning of PIF files is now supported. 
   -  Scanning of PHP viruses is now supported.
   -  Heuristics scanning is now in place to help detect unknown VBS 
      viruses such as new variants of LoveLetter.
   -  Our HoloCheck technology has been improved to detect a few new 
      polymorphic viruses.
   -  Detection for the W95/MTX.9244 virus and X97M/Jini-A1 
      misdisinfected viruses.
*  The speed of scanning CAB files has been improved.
FIXES
*  The level of generated false positives for macro viruses has been 
   reduced.
*  Detection of the MTX virus has been improved. 
_____________________________________________________________
RELEASE NOTES
Notes on Command AntiVirus for Exchange (CSAV) Version 2.43 
01/22/01
SPECIAL NOTES
*  This version is for ONLY Microsoft(r) Exchange Version 5.5 with
   Service Pack 3 or higher. A separate version is available for all 
   previous Microsoft Exchange 5x versions.
*  NOTE:  We highly recommend that you install Service Pack 4 for 
          Exchange Server 5.5. 
          This service pack fixes the problem that AVAPI had with the 
          Exchange Information Store.
          This service pack also fixes the following problems that 
          occurred on Command AntiVirus for Microsoft Exchange 
          Version 2.41:
          *  Not allowing the attachments to be opened.
          *  Periodic shutdown of On-access scanning. 
*  WARNING:  Command AntiVirus for Microsoft Exchange users
   We do NOT recommend installing Command AntiVirus for Microsoft Exchange 
   on the same computer as CSAV for Windows NT Server Version 4.59 and higher. 
   Doing so causes a conflict between the two scanners that are trying to access 
   the same file. This condition results in an incorrect warning message that 
   will display repeatedly and cause slowdowns.
   This is a temporary condition and will be fixed in a future commercial
   release. Again, the products can coexist on the same network but NOT on
   the same computer.
*  If you have Command AntiVirus for Microsoft Exchange Version 2.3x or lower, 
   before you install Command AntiVirus for Microsoft Exchange Version 2.43, 
   you MUST uninstall the previous versions. 
*  INSTALLATION INSTRUCTIONS
   NOTE:  Before installing CSAV for Exchange, make sure that Microsoft Exchange 
   Version 5.0 or higher is running on your server. 
   Also, make sure that you are logged on as:
   A.  an administrator on the local domain.
   B.  an Exchange Server administrator. This account should be the one on which 
       the Exchange services run.
   To install Command AntiVirus for Microsoft Exchange, follow these steps:
   1. Insert the CD-ROM.
   2. Click the Start button.
   3. Click Run.
   4. Select Browse to search the CD for the EXCHANGE directory.
   5. Change to that directory.
   6. Double-click Setup.exe and click OK. After startup, the system displays the 
      Welcome dialog box.
   7. Click Next. The system displays the Software License Agreement.
   8. To accept the license agreement, click Yes. The system displays the Setup 
      Type dialog box. 
   9. Select one of the following installations. We recommend the Typical 
      installation.
      -  Typical � Installs all required files.
      -  Custom � Allows you to choose whether to install program files and help 
         files.
  10. Specify the Destination Folder for the CSAV for Exchange files. You can 
      accept the default destination folder or click the Browse button to select a 
      different folder. 
  11. Click Next. The system displays the Select Service Start Options dialog box.
      This dialog box allows you to select the startup options for both the On-access 
      and the Scheduler services. The On-access service provides real-time virus 
      protection for your Exchange mail system. The Scheduler service allows you 
      to schedule virus scans. Select from the following options:
      �  Automatically start the CSAV for Exchange On-access service on system 
         startup.
      �  Start CSAV for Exchange On-access service upon completion of installation.
      We recommend that you select both options. This is the default setting.
  12. Click Next. The system displays the Start Copying files dialog box.
  13. Click Next. The installation program begins copying the CSAV for Exchange 
      files to your system.
      When the copying is complete, the system displays the Service Account 
      Information dialog box.
      NOTE:  If you chose the Custom installation, the system first displays the Select 
             Components dialog box. Select the components that you want to install and
             click Next.
  14. Type the user name�s password in the Password text box. This identifies the 
      Windows NT account under which the Command AntiVirus services run.
      NOTE:  If you did not use the correct user name, the system displays a dialog box 
             that informs you that you have entered the wrong user name. The user name 
             should be the user name that installed Exchange Server. 
  15. Click Next. The system displays a dialog box containing the following 
      message:
      THE ACCOUNT HAS BEEN GRANTED THE LOG ON AS A SERVICE RIGHT.
      This right is required for the account to run the service.
  16. Click OK. The system displays the CSAV for Exchange Options dialog
      box.  
  17. Use the Browse button to select an Administrator Name. 
      You can also change the Exchange mail folder that holds infected files in 
      quarantine. The default is Public Folders\Quarantine. You can use the 
      Browse button to select a Quarantine Folder from the Choose Quarantine 
      Folder dialog box. 
  18. After you have selected the Administrator Name and the Quarantine 
      Folder, click Next. The system displays the Setup Complete dialog box.
  19. Select whether you want to view the README file and/or run the CSAV for 
      Exchange console. We recommend that you view the README file as it 
      contains the latest information on the functionality of CSAV for Exchange. 
  20. Click Finish. This completes the installation of CSAV for Exchange. 
*  When the Action to Take on Infection for on-access scanning is set to
   LOG INFECTION AND CONTINUE, the attachment CANNOT be accessed from any 
   client. The attachment also CANNOT be accessed during an on-demand 
   scan. 
   To access these attachments, you can disable on-access scanning. You can
   then run an on-demand scan or access the attachment. 
*  The Notification feature has been changed.
   In the Mail Alerts Configuration dialog box, you can select to 
   SEND THE MAIL ALERT TO ADMINISTRATOR(S). This option is ONLY for sending 
   an alert message to ADDITIONAL administrators. It does NOT change the 
   Microsoft Exchange Server Administrator that you specified during the 
   installation.
   Although you can cancel sending an alert to the additional administrators
   that you selected, you CANNOT cancel sending an alert to the Microsoft 
   Exchange Server Administrator that you specified during the installation. 
PRODUCT ENHANCEMENTS
*  Selection of files and folders to scan has been improved. 
   To select multiple single files and/or folders, click the file or folder, 
   hold down the Ctrl key, and then click each file or folder that you want 
   to select.                       
*  To select a block of files and/or folders, click the first file or folder
   in the block, hold down the Shift key, and then click the last file or 
   folder in the block. 
FIXES
*  None for this release.  
_____________________________________________________________
RELEASE NOTES
Notes on Command AntiVirus for Exchange (CSAV) Version 2.42 
11/30/00
SPECIAL NOTES
*  This version is for ONLY Microsoft(r) Exchange Version 5.5 with
   Service Pack 3. A separate version is available for all previous 
   Microsoft Exchange 5x versions.
*  NOTE:  We highly recommend that you install Service Pack 4 for 
          Exchange Server 5.5. 
          This service pack fixes the problem that AVAPI had with the 
          Exchange Information Store.
          This service pack also fixes the following problems that 
          occurred on CSAV for Exchange Version 2.41:
          *  Not allowing the attachments to be opened.
          *  Periodic shutdown of On-access scanning. 
*  WARNING:  CSAV for Exchange users
   We do NOT recommend installing CSAV for Exchange on the same computer 
   as CSAV for Windows NT Server Version 4.59 and higher. Doing so causes 
   a conflict between the two scanners that are trying to access the same 
   file. This condition results in an incorrect warning message that will 
   display repeatedly and cause slowdowns.
   This is a temporary condition and will be fixed in a future commercial
   release. Again, the products can coexist on the same network but NOT on
   the same computer.
*  If you have CSAV for Exchange Version 2.3x or lower, before you install 
   CSAV for Exchange Version 2.42, you MUST uninstall the previous versions. 
PRODUCT ENHANCEMENTS
*  This release contains scan engine enhancements that include detection for
   the W95/MTX.9244 virus and X97M/Jini-A1 misdisinfected viruses.
*  If the SCAN ALL FILE ATTACHMENTS option under MAIL ATTACHMENTS TO SCAN is 
   selected in the PROPERTIES/DETECTION dialog box for both the on-access and
   an on-demand scan task, Command AntiVirus now performs the following:
   -  decodes and scans messages in TNEF format
   -  decompresses and scans ACE files
*  The speed of scanning CAB files has been improved.
FIXES
*  The level of generated false positives for macro viruses has been 
   reduced.
*  Some users reported Information Store shutdowns. This problem was 
   caused by a text buffer overflow, and it has been fixed. 
_____________________________________________________________
RELEASE NOTES
Notes on Command AntiVirus for Exchange (CSAV) Version 2.41
09/26/00
SPECIAL NOTES
*  WARNING:  CSAV for Exchange users
   We do NOT recommend installing CSAV for Exchange on the same computer 
   as CSAV for Windows NT Server Version 4.59.4. Doing so causes a conflict 
   between the two scanners that are trying to access the same file. This 
   condition results in an incorrect warning message that will display 
   repeatedly and cause slowdowns.
   This is a temporary condition and will be fixed in a future commercial
   release. Again, the products can coexist on the same network but NOT on
   the same computer.
*  Before you install CSAV for Exchange Version 2.41, you MUST uninstall 
   any previous versions of CSAV for Exchange. 
*  The pre-installation requirements have changed in this release. 
   Before installing CSAV for Exchange, make sure that Microsoft(r) Exchange
   Version 5.5 with Service Pack 3 is running on your server.
   You MUST be at least an Exchange Server Administrator.
   The account that you are logging in with MUST have the following rights:
   -  Act as part of the operating system
   -  Create a token object
   -  Increase quotas
   -  Log on as a batch job
   -  Log on as a service
   -  Log on locally
   -  Replace a process level token
   -  Restore files and directories 
*  CSAV for Exchange no longer contains the option to send an e-mail 
   notification to the Sender and Recipient of an infected attachment. Now, 
   only the mail administrator designated at the time of the CSAV for Exchange 
   installation receives an e-mail notification that an infected attachment has 
   been found. 
   If the infected attachment is QUARANTINED or DELETED, the Recipient's infected 
   attachment is replaced with a file called VIRUSINFO.TXT. This file specifies the 
   name of the attachment and the name of the virus that was found.
   The Sender of the infected attachment does NOT receive any notification. 
*  The Quarantine folder is no longer located in Public Folders. It is now
   located in Program Files\Command Software\CSAV for Exchange\Quarantine.
PRODUCT ENHANCEMENTS
*  In previous versions of CSAV for Exchange, there is a limit of 7,500 users. 
   In CSAV for Exchange Version 2.41, this limit has been greatly increased.
*  CSAV for Exchange now includes the scanning of both incoming and outgoing  
   (mail that is sent to addresses outside the server's domain) e-mail.
FIXES
*  None for this release.
===================================================================
PRODUCT SUPPORT
Command Software Systems' technical support includes a variety of 
electronic services. You can contact us at:
Command Software Systems, Inc.
1061 E. Indiantown Rd., Suite 500
Jupiter, FL  33477
   Voice: 561/575-3200 8:00 a.m. to 8:00 p.m. Eastern Standard Time.
     Fax: 561/575-3026
Internet: [email protected]
     FTP: ftp.commandsoftware.com
     Web: http://www.commandsoftware.com
In Europe contact:
Command Software Systems UK, Ltd.
Ground Floor
Millbank Tower
Millbank
London SW1P 4QP
If dialing from within the UK:
   Voice: 020 7 931-9301
     Fax: 020 7 931-9302 
If dialing from outside the UK:
   Voice: +44 20 7 931-9301
     Fax: +44 20 7 931-9302
Internet: [email protected]
          [email protected]
          [email protected] 
In Pacific Rim, contact:
Command Software Systems, PTY Pac Rim
Unit 5, 18-20 Floriston Road
Boronia, VIC 3155
Australia
   Voice: 1-300-65-0903 or 613-9762-2203
     Fax: 1-300-65-0904 
Internet: [email protected]
     Web: http://www.commandcom.com.au
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