I have many .VIP projects made with MAGIX Music Studio Audio Studio 2004 deluxe. As I want to migrate to Windows 10, I have to use a newer version of Music Studio or another product. How ca I convert the PROJECTS (.VIP, not the audio files)?
You wouldn't have to do any conversion per se. It's essentially still the same format as before. The "Audio Studio" component that was included as part of the MAGIX "Music Studio" product line up until version 11 was a cut-down, consumer version of Samplitude. So, it would have been the predecessor of the current Samplitude Music Studio product line. There has never been a fundamental paradigm shift within the Samplitude product line when it comes to the project format, and backward compatibility should be working reasonably well. Of course, there are some limitations to that, especially when it comes to the use of plug-ins or on-board effects, some of which have changed. So, it depends on your project, what effects you used, whether you actually used any DirectX effects back then etc. However, you should definitely find that current versions of Samplitude/Music Studio will open your old VIP files and reload the referenced audio files/objects correctly (as long as they are still available). I'd recommend you just give this a shot with the trial version of SMS or Samplitude Pro.