Hi, I'm using vs2005, .net 2, C# for windows application. In my application, I use a C-compiled dll for some of it's functions. It works on my devvelopment PC if I have this dll in my application-drive\bin\release folder. I created a Setup project for the application. In the file syste, I added the dll. After successful installation on a target machine, I get error of not able to find the dll. I checked the program files directory and the dll is there. Can someone tell me what's wrong here and how can I solve this? Thank you.