It's not identical with the SP3 version. Only the version is the same, content is different (PE binary code). Additionally, the msinfo32.exe is only the launcher, not the real system information - latter is the msinfo.dll, which serves as a module for the Windows Help Center Service. If you start msinfo32.exe, the small process simply quits after launching the system information. However, in WS2008 the msinfo32.exe contains the real code (see size on support site) and probably that's the reason why MS "updated" the exe accidently in xpe instead of the dll, too - and then corrected the update package on August.
