I run Mezzmo 2.7.1 under Windows 7 X64 Pro on an 8 core AMD processor machine with 32 gigs of memory. I've been noticing that when the machine boots up, it will often show 20 gigs of memory in use. After some troubleshooting I found that the problem was related to the Mezzmo service. If I shut down the service I could immediately see the In Use memory start dropping in the Resource Monitor until after a few minutes it was down to 2.5 gig in use. After some additional troubleshooting I found that if I changed the servcie starting from Automatic to Automatic - Delayed, it would start normally (after a short delay) on reboot and would use a normal amount of memory but with Automatic the service would chew through available memory. It ran fine, even with the large amont of memory in use but it shouldn't be doing this. Anyway, I am set to Automatic - Delayed for the service starting and memory usage is normal now.