The output looks like this (the plugin ID is in the last column):

For some reason the program did not run on my Win7 64 machine, even in compatibility mode. Please let us know if you have better luck with it. BTW: Does anyone know of any other similar utility for Windows?
P.S. An interesting article somewhat related to this subject: http://www.soundonsound.com/sos/nov07/articles/pcnotes_1107.htm
UPDATE: Check VST-Scanner :
http://vb-audio.pagesperso-orange.fr/us/resources/vst_scanner/vst_scanner.htm