Using Global Positioning System(GPS) utility in Windows 8

There is an issue using GPS utility(Tools->Geographics->GPS) in Windows 8 Tablet PC. This utility allows only Garmin USB or NMEA-Compatible COM port GPS receivers but internal GPS module for Tablet doesn't provide such interface. In Windows 8 there are no Virtual COM ports for internal GPS modules as the drivers for W8 are different. Is it a known issue and are there any workarounds how to connect it?