Smaart versions 3, 4 and 5 will run all run on Windows 7 or Vista however it must be run with administrator permissions. Below are the steps to tell Windows 7 or Vista to always run Smaart as administrator.
1. Right click C:\Program Files\Sia SmaartLive 5\rt.exe
(Assuming default installation location)
2. Select Properties
3. Select the Compatibility tab
4. Check the "Run this program as an adminstrator" checkbox.
5. Click OK