How to change PNA device call memory card from 'SDMMC' to 'S

I have two PNAs one call SD card as 'SDMMC' and the other call 'Storage Card'.
One run on WinCE 6.0 ,another run on WinCE 5.0
Is there any way to change or re-config windows to call memory card as desire.
May be in static way (permanent) or dynamic (as require to run a program),
due to I have a GPS software which can run on device that call 'Storage Card' but
can not run on the device call 'SDMMC'.