This is a common error in microsoft's Windows Se7en, causes are yet to be fixed by SSO game developers, but there's one thing you could do to make the game run.
First, Go to the desktop and RightClick the SSO icon
Second, Go to Properties, and Compatibility tab
Third, set it to work with Windows 98, 2000, or similars
Forth, check the Admin Rights and Accept.
Fifth, try logging in!
if it didnt work, you have to repeat the third step and choose a different OS.
if you encounter any problem, post it!