it's brilliant that there are a lot of people who are interested in my script.
please take a look on your system and search for the file "C:\WINDOWS\system32\mscomctl.ocx" or a "mscomctl.ocx" at another place. I think you must register the 'ocx' file. Please look at http://www.majorgeeks.com/faqshow.php?id=8
for more details. There is also a download link in case you haven't this file. In my script i am using a list control to show lists of files and this control is a part of the ocx-file.
I hope this solves your problem - unfortunately i can't really say where i got this file from as i am installing and uninstalling a lot of programs and also have the .dotnet VBA installed which probably contains this file too.
I am not sure whether my script can copy tag information while using different source and destination file formats. I haven't tested this yet, because i am using mp3 files only. In case that the tags have the same name i can imagine that the script also works for other files than mp3. But please make a backup of the originals before...
If you use other file formats than mp3 you must not use the albumart function of the script. This is very important as the script does not use the MM to include the albumart into the mp3 files.
Can you explain the ID's the MusicIP Mixer creates? I will also take a closer look at this software. But the main question is, where is the ID stored and is this tag a tag supported by the MM. If it's not supprted by MM, it probably can't be copied by this script unless you copy it with general system function like the albumart feature. But let's have a look.