zune.exe -refreshlicenses
When 140 characters aren't enough...I love my Zune, but I often get teased by my iPod loving friends and family that I must be one of three Zune users. I know there are a lot more Zune users, but I have yet to run in to any of them at the gym.
One of my favorite Zune features is the Zune Pass. I like be able to pick up and drop music on a whim and the Zune pass allows me to do that for $15.00 a month. In my apartment I use several virtual machines that perform various tasks. One of them hosts all of my music (among various other tasks) on a shared USB drive. I stream my Zune Pass music from this virtual machine to my XBox down stairs (I like to listen to music while I do the dishes). Since I only access this virtual server through its various services, the DRM licenses on my Zune Pass music expire causing an error when I try to access them from my XBox 360 console.
Normally the DRM licenses used by Zune Pass music is refreshed automatically when you try to the play a DRMed track, but playing an expired track on the XBox 360 doesn't cause a license refresh. So...Zune Pass DRM + A host that never actually plays a music track itself + XBox 360 = :-(
Buried somewhere on a Microsoft forum I found an obscure reference to an undocumented (I didn't look very hard for any actual documentation) switch "refreshlicenses". Running "zune.exe -refreshlicenses" once a month forces all of the Zune Pass DRM licenses in my library to refresh without being played, allowing me to play everything on my XBox 360 once again!
Zune Pass DRM + A host that never actually plays a music track itself + XBox 360 + "zune.exe -refreshlicenses" = :-)