Alright, it took some time, on and off, but it's finally done: VB6 - Screen Capture to Video

That C# tutorial was choke full of "Await" instructions, await this, await that and then await some more! That asynchronous behavior was a pain to replicate in VB6, more so than hunting IIDs and VTable offsets in the SDK files...

Thanks again TheTrick for getting me on the right track!