Ok , heres the thing. I have a project im workin on, and i have my exe , in a directory, with a subdirectory named DLL and inside that my dll. I was sure that csc /t:winexe /libLL /r:uiobj.dll msf_exe.cs also have tried csc /t:winexe /lib:.\DLL /r:uiobj.dll msf_exe.cs is the compiler command i would use to create my exe, set up a DLL subdirectory and reference the dll inside it... But alas when i run the exe and JiT Debugger error somes up saying System.IO.FileNotFound exception.... even though the command compiler does not have any error compiling the code. It doesnt matter what i do , if i dont have my dll inside the folder with the exe it wont work. I can even add my dll to the GAC with gacutil.exe and that works fine. I just cant access my private dll's inside my subdirectory. Could it be that my environment vars are set wrong , or something else. i was sure that /:lib set a directory reference , but its just not working for me /cry Any help or ideas would be great, thanks you in advance! PS : i dunno what i need to do to stop that stupid green smile face , its supposed to be a d.