I'm using standard version of BC and MI both patched. The standard MI (with small screen) was patched by overwriting Mapinstall.exe wih the patched version of Mapinstall.exe to allow writing to drive C what I need.

Now I'm using MapInstall_404_1280x800.exe because I like the bigger size window but I see no option to write to C drive.
Can this version of MI be patched too to allow this feature and is there another exe file for this purpose ?