finding out functions in windows dll files , please help

Dear friends
Can you tell me of how to find out the various functions inside an .dll file . Is there any tools ? Please help .

Thanks ...

Hrishikesh

In Visual Studio, there's a program called Dependency Walker (Depends in the MS VS 6.0 Tools menu). This will show you what the functions are, but it won't tell you the parameters or the return values.