My AC3 Decoder

[TrigunXX]

I create the decoder. This is an example

Now, using the example DLL, i want to execute my program with the file/files *.ac3 selected from the user. I want to pass parameters (input and output path) to my program ...for example

shellExecute ac3decoder.exe "c:\audio.ac3" "c:\audio.wav"

but i don't know what variables contain the path in the example DLL. HELP..