so frustrating. Using Magix X6. When I go to export to Quicktime - this pops up. I bought Quicktime Pro 7 for Windows AND totally reinstalled X6 and updated it again. I see others with this problem but no fixes.
Don't have VPX6 so can't test whether this works on my computer or not, but I notice your screen shot mentions "MAGIX Capture Module". That should have nothing at all to do with exporting a file, I think.
I just got a response back from Support. This is a known bug. They need to build a bridge between the 64bit X6 and the 32bit Quicktime encoder. This Quicktime export will Not work until the next update comes out. For now I am exporting the raw file out and then encoding with a seperate encoder. bummer but it is what it is. good to get anwser on it so I don't keep banging my head.