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Does codec pack installed on system (fe. ffdshow) affects VS (let's say X2) work?
I mean, if VS always uses internal/supplied codecs or rather loads data via system mechanism? Or maybe resorts to the latter only for unknown containers/ formats?

Please read http://forum.corel.com/EN/viewtopic.php ... 2b62ffae96

I've been a long time user of ffdshow, with no ill effects. It's easy to uninstall and re-install.

Lately though, my knees have been playing up. Maybe I should uninstall ffdshow!