I need to know if in the Propath program I can do something to use an auto-complete function. Ex.: When I wrote a word all directories that matches this word appears down, so like that I can find and auto-complete my directories easier and.

I found a dll from Widows named "SHLWAPI.DLL" and build a program to use it. I did it, but I can't press the "Return" and "Tab" keys from keyboard because the .dll block it. I'll be really grateful if someone send to me a solution to the program that I build or another solution for my main problem.