VirtualDubMod is based on VirtualDub by Avery Lee. Born as a unification of several modifications, new features have been added including support for the matroska format. This project has been discontinued since 2004-2005.
Tried :"Extracting VirtualDubMod_1_5_10_2_b2542.zip into VirtualDubMod_1_5_4_1_All_inclusive.zip and running VirtualDubMod.exe on a 1.2GB MKV but it exited with a memory error. Is there a size limit? Does it handle MKV