Could anyone tell me how to connect to a remote DB2 server with .net programming?

The environment I setup is described as below:

I have 3 machines, one as the DB2 server (win2000 server, DB2 v8.1.5.449), one as the .net web server (win2000 server, .net framework 1.1), and I use the third machine (winxp) for the development of programming in Visual C#.

I've updated the DB2 server to fixpak 5, and installed an admin client and fixpak 5 at the web server also. Finally I installed the development client and fixpak 5 at my development machine.

It only keep on showing the error message of "Unable to load DLL (db2app.dll)", could anyone please kindly tell me how to solve it?

In fact, I just want to use the IBM.DATA.DB2 provider.
Could anyone please kindly give me a helping hand?

I updated the path on my system by moving the SQLLIB\BIN folder to the front of the path and restarted. It worked great after that.

Could you elaborate more on your answer?