This article was previously published under Q287309
When you create a workspace, you may receive the following error message:
The process cannot access the file because it is being used by another process.
In addition, the following event ID message is logged in the Application event log:
Source: SharePoint Portal Server Category: None Event ID: 20488 Description: Workspace Creation - Content could not be created from .cab file. The process cannot access the file because it is being used by another process.
This issue can occur if antivirus software is running on the server when you enable the Exchange Installable File System (ExIFS). ExIFS maps the contents of the Web Storage System to a drive letter (typically to drive M). If anti-virus software is configured to scan all drives on the server, you may receive the error messages described in the "Summary" section of this article when you create a workspace.
To resolve this issue, disable all antivirus software on the server when you install SharePoint Portal Server. Always disable or close third-party programs when you are installing new products.
ExIFS is disabled by default on SharePoint Portal Server installations. For more information, refer to the SharePoint Portal Server release notes.