MathMagic v7.x or newer should run on Windows XP or newer including Vista, 7 and 8.
On Windows 7 or 8, please set the Compatibility mode to “Windows XP SP3”, and run as Admin.
If your account does not have enough privilege to access the Registry or your Firewall setting blocks MathMagic Pro from communicating via TCP/IP protocol with MathMagic Plug-ins or XTensions, there might be an error. This can be resolved if you change those Security/Firewall setting or by adjusting your Anti-Virus utility. And also, Windows compatibility mode and Run as an Admin settings may be required