Cashbook Connect will not open - Mac / Parallels

Cashbook Connect will not open - Mac / Parallels

Situation where client bought new Mac computer. Had already downloaded Parallels and needed help to install Cashbook. Once Cashbook (Connect) was installed, program would not open. Just did nothing!
Attempted to open as Administrator and run in compatibility mode. Did not work.
Solution was to change the Emulation Settings under Cashbook properties to VERY STRICT EXECUTION.
Once that was changed, program opened as normal.