On sourceforge, next to the
project name "guliverkli" you will find the name of the developper:
Gabest.
Guliverkli project included some free video decoders (MPEG2, ogm...) splitters (MP4, MKV, FLV....) subtitle filters (VobSub, later known as VSfilter), software (Media PLayer Clasic) , audio filters (DTS and AC3 decoders) and the list can go on....
here you can find the whole list:
Browse guliverkli Files on SourceForge.net
latest Matroska splitter from Gabest is 1.0.3.1:
Free-Codecs.com :: Download Matroska Splitter 1.0.3.1 : A DirectShow splitter filter for the Matroska format