error 430 on windows 2000

hi,all.I am calling com+ 1.0 admin library to create a com+ application.The program runs well on my win xp pro and even on windows 2000 which has vb and vc installed.But it just keeps giving me "error 430:Class does not support automation or does not support expected interface" on another windows 2000 server which has not vc and vb installed.I do install the newest(version 2.7)MDAC on that server but seems no luck.anyone has experience with this problem?

This error usually means something is not installed or has not been installed correctly on the computer. Did you use a setup program, such as the PDW, to install the program?

Make sure all the required Dll and their dependancy files have been installed correctly.