Known filenames:
mystcraft-1.7.10-0.11.12.00.jar
MystCraft.jar
MYSTCRAFT-1.7.10-0.11.12.00.jar
Mod-Mystcraft.jar
mystcraft-1.7.10-0.11.12.00 (1).jar
1.7.10 Mystcraft.jar
XCompWiz-MystCraft-1.7.10-0.11.12.00.jar
Mystcraft.jar
Mystcraft 1.7.10-0.11.12.00.jar