I managed to compile successfully.
(We'll see how the rest goes, of course.)
I searched the EQEmu forums a bit and found this:
http://www.eqemulator.org/forums/sho...ghlight=LIBCMT
Apparently it was as easy as described: I just had to ignore LIBMT for all of the projects (Project Properties > Linker > Input > Ignore Specific Default Libraries > Edit > Add "LIBMT").
Apologies for getting slightly off-topic with the original issue.