Yep, IsWOW64Process() requires (i.e. is only present in) XP *SP2* Get[Native]SystemInfo() appears to be the way to go for a consistent mechanism across all relevant Windows versions, including XP pre-SP2.
http://msdn.microsoft.com/en-us/library/ms724429(v=vs.85).aspx -----Original Message----- From: delphi-boun...@delphi.org.nz [mailto:delphi-boun...@delphi.org.nz] On Behalf Of John Bird Sent: Monday, 13 December 2010 14:45 To: NZ Borland Developers Group - Delphi List Subject: Re: [DUG] Help Detecting Windows Version ?That environment variable was mentioned as a way for eg Windows XP 64 bit, as from what someone said like the iswow call might not apply for XP 64bit? John > ProgramFiles(x86) environment variable which is only set > on 64 bit versions Only set **automatically by the OS**- there's presumably nothing stopping someone from setting such an environment variable for their own purposes should they choose so to do. Why would they? Who knows. But they *could*. Perhaps if they wanted to fool an app that used a crude 64-bitness detection algorithm into doing something it otherwise wouldn't... ;) -----Original Message----- From: delphi-boun...@delphi.org.nz [mailto:delphi-boun...@delphi.org.nz] On Behalf Of John Bird Sent: Monday, 13 December 2010 13:47 To: NZ Borland Developers Group - Delphi List Subject: Re: [DUG] Help Detecting Windows Version ?http://stackoverflow.com/questions/601089/detect-whether-current-windows-ve rsion-is-32-bit-or-64-bit easiest way depends on whether Windows 7 or Server 2008, or older. Simplest and most general over windows versions looks to be There are more specific ways added for Windows 7/Vista/Server 2008. John Hi, has anyone got a function they can share that will detect all current versions of Windows out there? F.i. My old routine cant detect Windows Server 2008 64 bit Tried googling but can only find outdated code like mine. _______________________________________________ NZ Borland Developers Group - Delphi mailing list Post: delphi@delphi.org.nz Admin: http://delphi.org.nz/mailman/listinfo/delphi Unsubscribe: send an email to delphi-requ...@delphi.org.nz with Subject: unsubscribe _______________________________________________ NZ Borland Developers Group - Delphi mailing list Post: delphi@delphi.org.nz Admin: http://delphi.org.nz/mailman/listinfo/delphi Unsubscribe: send an email to delphi-requ...@delphi.org.nz with Subject: unsubscribe _______________________________________________ NZ Borland Developers Group - Delphi mailing list Post: delphi@delphi.org.nz Admin: http://delphi.org.nz/mailman/listinfo/delphi Unsubscribe: send an email to delphi-requ...@delphi.org.nz with Subject: unsubscribe _______________________________________________ NZ Borland Developers Group - Delphi mailing list Post: delphi@delphi.org.nz Admin: http://delphi.org.nz/mailman/listinfo/delphi Unsubscribe: send an email to delphi-requ...@delphi.org.nz with Subject: unsubscribe
