MIC 1.5 runs on Windows 7 but not at 100%.
When clicking your Color Tuning button, you get a blank work window that freezes the program. You can try applying various permissions and OS scenarios (Win 98, 2000, XP, etc.) and it will correct the malfunction for a few clicks but then faults again shortly afterwards.
MIC 1.5 will work well on Windows XP w/any of the service packs.
NOTE: I have been trying to find a work around for this bug but have yet to find one. If anyone has succeeded, please do share it. MIC is one of my favorite programs and with the right (third party) plugins, can still go toe-to-toe with PhotoShop.