This is a Windows service written in C# which uses the Last.fm REST API and the local iTunes COM library to keep your iTunes play counts and last played dates up-to-date if you listen to your music using another application which supports scrobbling. It can be described as a "reverse scrobbler": instead of updating Last.fm counts with iTunes activity, it goes the other direction.

To update app.config without uploading your changes, go to the command-line and enter:

git update-index --assume-unchanged src/RevScrob/app.config

Currently there is no separate executable. To run the application, use the BatchProcessor unit tests. I recommend to run the library-wide sync for the first run, and then to use the recent tracks sync for subsequent passes.

• There is strange behavior when using an iPod before and after sync, with the Last.fm Scrobbler for Windows. If you sync the iPod and eject it, then run RevScrob to update your play counts, and listen to a few songs on the iPod, and then sync the iPod again, the Last.fm Scrobbler dialog box will show the songs that were updated in the previous syncing operation. You will need to make sure "Automatically Scrobble tracks from device" is unchecked, and uncheck the duplicates before submitting. Otherwise, syncing the duplicates will result in a feedback loop where the song is scrobbled every time you sync. If you accidentally scrobble the song, you can log in to Last.fm, find the song to fix, and delete the duplicate records.

  The workaround is to sync your iPod first, eject your iPod, and wait for the dialog:

  

  Then run RevScrob. Then sync your iPod again before using it, and eject it. When the dialog comes up this time, uncheck all the songs.