BEZ

Tom When I was doing active development with Direct Show. I think there was a way with the Direct X SDK developer tools to log and capture filter graph build attempts. If you can find both the ingress and egress points (Source, and Output) If you are determined enough you should be able to fill in the gap unless they were custom written filters. I would hope that anything custom would have been part of the base install. It is more likely that the missing ones used to be part of standard installs...

The error does not provide any real detailed info, but it look like you may be missing a required directX filter or equipment driver. The code is trying to build the filter graph and failing due to an incomplete chain. Below is the error code with it's cryptic reason. VFW_E_CANNOT_CONNECT0x80040217 No combination of intermediate filters could be found to make the connection. I would do a search and see if you can find out if there is a codec module that is missing, and verify what hardware modules...