How do I fix "Failed to launch startmovie! If you are trying to use h264, please make sure you have QuickTime installed." problem?

I was wondering how I would go about fixing the error mentioned in the title of the thread.
I have definitely installed Quicktime and I even restarted my computer to no avail.

If there isn’t a way to fix this, do you have a good, free program that’ll stick all the TGAs together?
I remember having one a long time ago but I can’t remember it.

bimp :C

bumppp

Does no one have any answers?

For putting together TGAs you can use Virtual Dub. I’m pretty sure it’s free. https://developer.valvesoftware.com/wiki/Demo_Video_Creation#VirtualDub