GMAD Extractor Crashes when click open

I open gmad extractor, than i click open, than it crashes with saying GMAD EXTRACTOR has stopped working. I try over and over running with admin just not working. i got the latest version on http://www.treesoft.dk/gmod/gmad/. Any ideas?

[editline]14th October 2015[/editline]

bump

Just take the default gmod gmad extractor. it can be found within /steamapps/common/garrysmod/bin/ and its called “gmad.exe” - drag the .gma file on it and it will be extracted.