If you try to run the StyleTap desktop install program on your Windows PC and get the message:
"This application has failed to start because RAPI.dll was not found."
It means that you either do not have Microsoft ActiveSync installed, or have an old version. (Microsoft ActiveSync is required to install StyleTap Platform onto the Windows Mobile device from your Windows desktop.) The latest version of ActiveSync for Windows XP can be downloaded for free from Microsoft at http://www.microsoft.com/windowsmobile/activesync/activesync45.mspx (or install from the CD that came with your device).
Note: Windows Vista no longer uses ActiveSync -- it uses Windows Mobile Device Center (http://www.microsoft.com/windowsmobile/devicecenter.mspx)