There is a patch which supports both 32- and 64-bit Windows for VTune 7.2 on Pentium D, not visible on my account on premier.intel.com. It includes a revision to the (32-bit) .dll, and new 32- and 64-bit copies of the VTune driver. The remote collector posted on premier.intel.com, dated 8/16/2005, works with Pentium D, but not with Windows 2000, according to my experience. The next revision of VTune was supposed to be available by now (as I was told the last time I asked), and that should include full support. You could submit a request on premier.intel.com asking for a suitable version (patch for 7.2 or updated version).