HP MCE Remote
Both versions are compatible with the Microsoft remote, and the .reg files used to reconfigure the MS remote will also work with the HP remote.
On Windows XP Pro SP3 the receiver was recognised and installed automatically. There are reports that Windows XP may not automatically detect the receiver unless you edit irbus.inf as described in http://it.megocollector.com/?p=8. It is not clear when this hack is needed. Several drivers are available from HP (ex. http://h20000.www2.hp.com/bizsupport/TechSupport/SoftwareDescription.jsp?lang=en&cc=US&swItem=vc-100849-1&prodTypeId=12454&prodSeriesId=4210074). Note that there are several different remotes and drivers. It can be difficult to identify the appropriate driver.
With the Remote-XBMC.reg config all the buttons work in XBMC except for the "T" and "Print" buttons. To configure these buttons add the following to the .reg file:
4E,00,00,00,04,01,22,\ ; Print button on HP remote - sends ctrl-5 5A,00,00,00,04,01,23,\ ; T button on HP remote - sends ctrl-6