I could not find a solution in the forum so thought i would post one for it;
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PROBLEM:
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Backupexec jobs are giving a warning that "VSS Snapshot waring. File
c:\windows\system32\slanaccel.exe in not present on the snapshot."
RESOLUTION:
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delete the SAN/LAN Transfer Virtual Accelerator service (this won't impact
the system). After removing this service, it solves the problem.
To delete the SAN/LAN Transfer Virtual Accelerator service:
1. Logon as the Administrator.
2. Click Start>Run>CMD, open the command prompt
3. Type the following command:
SC delete slanaccel