I don't know if symscript is using the MIcrosoft return values, but for a standard microsoft call, a return value of 6 is "The handle is invalid."

Ignore my answer since Paul answered with knowledge of what he is actually returning.

Glenn, The command maps to the Win32 API - CopyFile and I return the code from the Win32 API.  Zero indicates a failure anything else is a success Can you send the script - or an example and some context around it? Also a debug file may help if you have an issue.