Mac OS X:
10.8.5, 10.9.5, 10.10, 10.11, 10.12
Mac Intel / 1GB of RAM / 30MB of Hard Drive Space
Windows 7 (64-bit), Windows 8 (64-bit), Windows 10 (64-bit)
Pentium 4 2.4 GHz or faster (or AMD equivalent) / 1 GB of RAM / 30MB of Hard Drive space
Adobe Premiere CS6, CC, CC 2014, CC 2015, CC 2015.3
Adobe After Effects CS6, CC, CC 2014, CC 2015, CC 2015.3
Apple Final Cut Pro 7*
Since Magic Bullet Denoiser II is no longer updated/maintained, if it's running a host or operating system outside of these specifications, the program will not be guaranteed to work as it's technically in an unsupported environment.
See the compatibility page for the latest version of Denoiser to see what its upgraded version will work with.