>I've seen that before where the error is being reported from the calling line. So, I'll have to look into that function. I'm doing some calls to a wwipstuff function.

Michel, what (exact) version of IE is installed on the machine where this is happening? The version of WinInet.dll that installs with IE 4 SP2 has caused this error for me in the past with InternetReadFile so much that I do not support this version.