COMDLG32.ocx

I’m trying to get an old server program running on a Windows 2003 R2 Enterprise x64 Edition. (Yeah, I know that’s kind of stupid, but contract monkey does what paying client wants.)

The old program is telling me that COMDLG32.OCX isn’t registered.

I’ve downloaded the newest version I could find(6.1.97.82), and tried to register it via regsvr32, but it doesn’t take. (The Specified module could not be found.) Any suggestions?