Using Include Files

I've tried both methods of using include files VIRTUAL= and FILE= when I use the VIRTUAL include I receive the error:

Error Type:
Active Server Pages, ASP 0126 (0x80004005)
The include file 'ProductList.asp' was not found.

and when I use a FILE include the page just produces nothing the regular page script runs so I know the asp is working but the include files just produce nothing. which leads me to believe something is wrong with my settings in IIS. Im running IIS on Windows 2000.