It has been reported that the MagMap software does not work with some versions of Windows 11. 

The following error is shown:

C:\Program Files (x86)\MagMap\olch3d32.dll is not intended for use with Windows or contains an error. Try reinstalling the program from the original installation media or contact your system administrator or software vendor. Error Status: 0xc000000d

Solution: There's a setting in the Windows Security that needs to be changed. See attached.