Windows Vista build 5438

6.0.5438.winmain
Build of Windows Vista

Windows Vista build 5438 is a pre-RC1 build of Windows Vista, which is mentioned in the file XONLINE_MAIN\public\ext\ComChk\1.2\x86\comchk.cpp from the Xbox Live source code leak.

comchk.cpp[edit | edit source]

// Longhorn winmain build 5438 does not need to fake being a debugger

	return(ovi.dwBuildNumber >= 5438);