I am running into the same issue and this is the information from MMC I have. I tried both 32bit and 64 bit versions and both gave me the same error;
This setup requires MMC 3.0. Please install MMC 3.0 and run this setup again. Download now MMC 3.0 components
On my Win7 x64 ultimate mmc.exe is:
File Version: 6.1.7600.16385
Created: 07/13/2009 7:49:42 PM
Last Modified: 07/16/2009 9:39:19 PM
Size: 2.04 MB(2.144.256 bytes)
Size on Disk: 2.04 MB(2.146.304 bytes)
Please let me know,
Thank you
-Ali