A quick review of the Release Notes (available from the Help menu) will show that Visual Studio* 2005 is not supported by version 7.2 of the VTune analyzer for Windows*. Also, if you are running Windows* XP Service Pack 2, this was not supported by version 7.2, either. :-(
Currently, version 9.0 Update 7 of the VTune analyzer for Windows* is available at the Intel Registration Center to registered users whose support agreement is current. Version 9.0 supports both Windows XP SP2, as well as Vista*, and Visual Studio 2005. If you update your installation and still have problems, please report them at Intel Premier Support.
Also, the APIs are documented in the online help, see "Pause/Resume APIs."