That is rather an old program which helps GPS software (with maps) to retrieve data from COM ports. Modern laptops and Windows tablets usually have implemented GPS receivers but often they are not used. This software uses a low level Windows functions to run a build in GPS sensor. This program works even if the Windows location services are off (I was really surprised by this). To use the com ports you have to install Free Virtual Serial Ports.

Download GPS2COM

GPS2COM works even if the Windows localization services are off.