Like all application programs, some accounting software does not adhere to what should be called 'anchor down' mode, but which Microsoft calls "limited mode".

This mode protects programs from viruses!  Furthermore, we can tell you whether your application is Microsoft compliant.  Accounting programs are notorious for changing Microsoft's operating system.  We will inform you about these problems. 

The point is that our experience works on protecting your accounting programs and data from several directions.