I've installed the latest version of Sugar 5.2 on Windows Server 2003, IIS, MS SQL Server 2005.

The documents module allows for a document to be uploaded along with any number of revisions. My issue is that when a user tries to download one of those documents, they are confronted with an error stating that the file extension is invalid or the file has been corrupted.

I go back to my ../upload directory, copy the file in question, add the appropriate extension to the file and the file opens perfectly.

Any thoughts?