The page at https://www.microsoft.com/downloads/details.aspx?FamilyID=d811f258-c95f-479a-bdf1-0d1154d700a5&displaylang=en states: QUOTE DO NOT CLICK DOWNLOAD IF YOU ARE AN MSDN SUBSCRIBER SEARCHING FOR FULL DEBUGGING SYMBOLS FOR WINDOWS XP: A more appropriate download is now available to MSDN subscribers on the Microsoft Developer Network. UNQUOTE It seems there are no checked builds of SP3 (x86 or x64) on MSDN Subscribers Downloads. 1. Where can we find the x64 checked build? 2. Is it OK to use the windowsxp-kb936929-sp3-x86-debug-enu.exe file for x86 work? 3. How do we install that file? Does the OS therein accept our MSDN Product Keys?