Normally you should have a header-file for the DLL, that gives you information about the functions and their parameters. If there is no header-file, you could use the dependency-walker (installed with CVI in the ...\CVI80\sdk\bin folder, the exe is called depends.exe). The Dependency Walker will show you the funcxtion names, but no parameter information. You can download the Dependency Walker from here, if you don´t have the sdk installed with CVI:
http://www.dependencywalker.com/
Hope this helps!
