The UMOD Extractor consists in two files. 

* UMODExtractor.exe is an independent tool
* UMODExtractorCM.dll is a context menu shell extension that adds 
  an extract menu option to shell context menu of umod files.
  To Install this shell extension you have to put the dll in some
  directory in your path (the Windows directory for example) and
  execute the UMODextractorCM.reg file to add some registry entries.
