That is exactly that.
A sequence of steps are needed to achieve that (I discover this process a while ago an another forum about satnavs, see the link below:
https://www.sorcieremonique.com/t13438- ... uel-sur-pc. Unfortunately, it is in french).
If it can help, here are the steps that I have followed (as far as I remember):
-create a folder "GPSVirtuel" on any of the hard drive of the PC. Name of the folder doesn't matter, just a remainder of the content for me.
-the current content of this folder on my PC is the following (two virtual GPS created):
Start by downloading the "imdiskinst.exe" and the commands file "Creez peripherique virtuel.cmd" from the link above. Execute "imdiskinst.exe" and then the command file "Creez peripherique virtuel.cmd". The reader "VirtualGarmin (L:)" is created (L being the letter you attribute to the reader during the process just mentioned) and appears in the readers list in Windows explorer.
-Connect the zumo to the PC and copy with explorer the whole zumo (from .system to the end) on this reader. Of course it is necessary to show the folder .System (touch speed on the map -->speed 10 seconds -->Configuration and Settings -->MTP Settings --> Show .System) before connecting the zumo to the PC). If a specific map exist on the memory card of the Zumo, copy this file with the other maps (in .System/Map).
-When you launch Basecamp, the virtual GPS appears as a connected GPS in the devices list after the library in the left pannel. All the maps of the GPS are loaded but since it is now on a hard drive, it takes much less time than downloading through an USB cable (a few tens of seconds, depending on the maps). Don't forget to update the maps in the virtual GPS also after an update in the zumo.
- the reader "VirtualGarmin (L:)" can be dismounted after use. Right click in explorer and then select option "Unmounted ImDisk Virtual Disk".
-if the virtual gps needs to be mounted afterwards, just run the command file "Activez GPS Virtual Name.cmd", where "GPS Virtual Name" is the name
of the .vg file created by the script "Creez peripherique virtuel.cmd".
Up to now, I did not create a virtual GPS for the XT2 because I try to stay with the sequence MRA-->XT2 and not going through MRA-->Basecamp-->XT2. But I could if requested do it for the XT2 to check if all this is still applicable to the XT2...