Windows 7 x64 will not load the emulator driver unless the OS is in "Test Mode." Open as Administrator.
: Windows 7 provides a compatibility mode that allows running older software in a more compatible environment. Trying to run Sentemul 2007 in compatibility mode might alleviate some issues. sentemul2007 windows 7 x64
Sentemul2007 was built for a much older environment. Many users find better success using newer alternatives like Windows 7 x64 will not load the emulator