Yes, A1Click is compatible with Windows 7.
If you look on our website, it says that it is compatible.
Actually, all of our programs are compatible with Windows 7. Windows 7 does not have as many compatibility issues with previous versions as previous versions did.
RegVac does sometimes have issues in Windows 7. Running it in Windows XP or Windows Vista compatibility mode should prevent those issues. Once it completes with no issues, you should be able to go back to Windows 7 mode.