A long time ago, I downloaded from the SourceForge.net
web site a program called "ffdshow". I use it and I like it.
Last week, I downloaded and installed "A-SQUARED ANTI- MALWARE" free edition.
I scanned my system and the result was: "TRACE.REGISTRY.ffdshow" called "danger medium"
I don't know what to do with that problem.
I join an attached file for you to get a description given by that anti-malware program.
I'm waiting for some news.