My Htc touch I sync with two computers one with Win 7(Previously \vista) and the other with Win XP both used to sync but now as I plug in the HTC and it shows connected the time goes back one hour in the HTC and also changes all the calender by one hour. The regions are set right the time is set right before sync and daylight saving is disabled in phone, this is a real mess if time changes it should never effect appointment times.

You can download HTC Sync for Brew MP from the HTC support page. The HTC Sync software can be installed on a computer running Windows 7, Windows Vista, or Windows XP.

1. On your computer, go to www.htc.com.
2. Click Support.
3. Select your phone model.
   Available phone software updates and the HTC Sync version compatible with your phone are displayed under Downloads.
4. Click the Download link for HTC Sync for Brew MP, and then follow the steps on the subsequent page to begin downloading the HTC Sync software.
5. After download is complete, double-click the HTC Sync installer, and then follow the installation wizard to install HTC Sync on your computer.

Visit the HTC support page from time to time to check for the most recent HTC Sync upgrade that you can download and install on your computer.