Hey GDURAN,
Thanks for the question. I understand you are experiencing issues with AirPlay in iTunes for Windows. The following resource may provide a solution:
iTunes: Troubleshooting AirPlay and AirPlay Mirroring
http://support.apple.com/kb/TS5209
If the AirPlay icon doesn’t appear in iTunes
Ensure that you followed these steps to use AirPlay in iTunes.
If the AirPlay icon still doesn't appear, try one of the following steps:
- If you want to AirPlay to an Apple TV, ensure that AirPlay is enabled on the Apple TV. From the Apple TV main menu, go to Settings > AirPlay. This should be set to On.
- If you want to AirPlay to an Airport Express, ensure that AirPlay is enabled in the device settings.
- If you want to AirPlay to a 3rd party AirPlay-enabled device, refer to the user guide.
Thanks,
Matt M.