Technical Reference: Exchange Directories to Exclude from Virus Scan
Exclude Certain Directories from File-level Virus Scanners
File-level scanners scan a file when it is used or at a scheduled interval and can lock or quarantine an Exchange log or database file while Exchange tries to use the file. This can cause a sever failure in Exchange Server 2003 and earlier versions and can also generate -1018 errors.
Best practice: Make sure that you exclude the following directories on all the drives.
In Exchange 2003, exclude:
In Exchange 2000 Server, exclude:
- M: Drive (Entirely)
Important: Do not scan the M: drive. File-level scanning of your M: drive can cause calendar items to disappear from users’ folders.
In Exchange Server 5.5, exclude:
For more information, see the following articles in the Microsoft Knowledge Base:
- XADM: Exchange and Antivirus Software - http://support.microsoft.com/?id=328841
- XADM: Large Number of Transaction Logs Created - http://support.microsoft.com/?id=298551
- XADM: A "C1041737" Error and an Event ID 470 Message May Be Displayed - http://support.microsoft.com/?id=300608
- XADM: Do Not Back Up or Scan Exchange 2000 Drive M - http://support.microsoft.com/?id=298924
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