I've done some work with CDO (v. handy if you run Exchange, but a bit of a bitch) and there are two varieties. (This is all NT4, don't know about W2K cos that's different again)- (1) CDONTS (which I think is the CDOSYS version cj refers to) must be installed and run on an NT server to function. It comes with the Option Pack.
- (2) CDO v1.21 - Works with MAPI mail services, but really targetted at Exchange. It depends on logging into a profile (which can be anonymous) to get it's configuration i.e. what server to use etc.
W2K uses a new version of CDO which (I believe) is all SMTP based instead of MAPI. If you want to know what you've got installed on your machine, try opening Word, hitting <Alt>+F11 and going to Tool..References and looking for "Microsoft CDO ????????" in the list.
Hope it's useful (maybe, maybe not???)
MCD