From Valve Developer Community
Revision as of 20:53, 2 September 2008 by Frostbite (Site is dead.)
Warning: MDLDecompiler only works with Episode 1 engine based models. It cannot decompile Orangebox models.
Note:There is a workaround to decompiling Orangebox models. Simply open the model in notepad and change IDST0 (Zero) to IDST, (Comma) and save the .mdl.