Importing .VOB files into Adobe Premiere with audio

I had some video recordings in DVD format (MPEG2, .VOB-files) that I wanted to edit in Adobe Premiere CS3. Unfortunately, Adobe Premiere does not support .VOB files.
After renaming the .VOB files to .MPG, I could import them in Premiere, but the import only contained video, no audio. Some searching on the internet brought relief: apparently it’s as simple as copying a .DLL file from the Adobe Encore CS3 program files folder to the Adobe Premiere CS3 folder. The file you need is ad2ac3dec.dll.
I copied it, restarted Premiere, and indeed, the .MPG file imported nicely with audio.