[RESOLVED] Error 5 and Error 52 Problem

[Code Doc]

I'm not sure whether to post this here or under Deployment, but I thought best to start here. A few users in Asia are having trouble after installing one of my VB6 Apps. I cannot replicate these errors here on any Vista or XP machine that I have.

During invocation, the program reads and decrypts files from both the AppData directory and the App directory. On occasion, users report Error 5 (Illegal Function Call) and Error 52 (Bad File Name or Number). Users have been instructed to be sure that the Windows language setting is set to English. Regardless, the error occurs. Here's a typical report:

"After I install the CD ROM, it first says that "an unrecoverable error 5 has occurred"; then I change my language settings and yet it says that "an unrecoverable error 52 has occurred."

These are error traps that I set in the program because it cannot continue in either case. Any ideas why this is occurring in Asia and not here? The software was installed and tested thoroughly on both XP and Vista.