ACM Properties is an easy way to get a listing of all the installed ACM plugins, as well as the audio formats that they can input and output (and their respective bit depths, sample rates, etc). ACM Properties is especially handy when you're having a problem using a plugin in another program, and can quickly check to see if the format is correct.
ACM Properties works on all
versions of Windows, from Window 95 to Windows 7 and everything inbetween (including XP, Vista, Win2k, etc). If you have a general question related to any of the programs on the site, or would like some additional info related to the downloads in general, then check out the downloads FAQ