VB6 exe error 'Invalid Picture'

This is a bit of a grey-area question, so I'll try both here and Server Fault...

I have a utility app, built with VB6. I no longer have source for the app. The utility was last used successfully on Sunday morning. When attempting to run the app this morning, I get an error dialog complaining about 'Invalid Picture'. On a second and third server, the app works as intended.

The install of the app has not changed. As I don't have full control over the server, it is possible patches have been applied I am not aware of. Anyo开发者_开发百科ne know of a possible change to the OS that may have precipitated this error? The Server is running 2003 R2, SP1.

Best guess

• get yourself Sysinternals Process Monitor
• use it to check if your VB6 program loads some picture files
• if you found them, check if one of those picture files has a 32 bit depth (VB6 does only support 24bit depth at maximum, according to this forum)