Help with Model Decompiler

I’m having a little problem with this model decompiler program, I don’t really know if anyone has heard of it(Link to it: http://www.chaosincarnate.net/cannonfodder/cftools.htm ), MDL Decompiler. So I followed all of the instructions to installing it, this is the directory I put it in C:/ProgramFiles(x86)/Steam/SteamApps/Accountname/SourceSDK/Bin and it doesn’t work. When I try and open the Model Decompiler I get this error message “The procedure entry point Q_AppendSlash could not be located in the dynamic link library vstdlib.dll.”. Does anyone know how I can fix this? Any support would be appreciated, thanks.

C:/ProgramFiles(x86)/Steam/SteamApps/Accountname/SourceSDK/Bin/ep1/bin
put the mdldecompiler program in there
try that

Thankyou mate, works perfectly now.