APPHELP Versions

APPHELP was introduced for Windows XP, though many of its exported functions were earlier exported from an SDBAPIU.DLL that is known only in the last service packs of Windows 2000 (which are anyway contemporaneous with Windows XP). That prehistory aside, APPHELP has standard Windows version numbers:

File Version Distribution
5.1 Windows XP
5.2 Windows Server 2003
6.0 Windows Vista
6.1 Windows 7
6.2 Windows 8
6.3 Windows 8.1
10.0 Windows 10

Builds

The following builds have been inspected for these notes. Most are from MSDN discs. Some, especially since Microsoft greatly reduced its shipment of operating systems on MSDN discs, are from service packs downloaded (typically as self-extracting executables) from a Microsoft website.

Builds are arranged in increasing order of the file version as recorded in the executable’s resources. This version number is readily visible using Windows Explorer either in a so-called infotip for the file or by accessing the Version tab in the Properties dialog for the file. Programmers know this version number as coming from the so-called root block of the version-information resource, specifically from the dwFileVersionMS and dwFileVersionLS members of a VS_FIXEDFILEINFO structure.

The date stamp shown for each version is more obscure. File dates are easily modified after the executable is built and are anyway liable to be shown differently when read from different time zones. However, there is in each executable’s header a date stamp which is set when the executable is built and which is not commonly changed afterwards. It is readily accessible to anyone with programming knowledge and appropriate tools, e.g., Microsoft’s own DUMPBIN utility.

File Version File Header Date Stamp File Size Package
1.0.0.1 (as SDBAPIU.DLL) 3B7D7B18 (17th August 2001) 72,192 Windows 2000 SP3
Windows 2000 SP4
5.1.2600.0 3B7DFE17 (18th August 2001) 104,448 Windows XP
5.1.2600.1106 3D6DFA1B (29th August 2002) 115,712 Windows XP SP1
5.1.2600.2180 411096B4 (4th August 2004) 126,926 Windows XP SP2
5.1.2600.5512 4802A0BF (13th April 2008) 125,952 Windows XP SP3
5.2.3790.0 3E8024A1 (25th March 2003) 124,928 Windows Server 2003
5.2.3790.1830 424377C3 (24th March 2005) 150,016 Windows Server 2003 SP1
5.2.3790.3959 45D70A36 (17th February 2007) 148,992 Windows Server 2003 SP2
6.0.6000.16386 4549BCAF (2nd November 2006) 171,008 Windows Vista
6.0.6001.18000 4791A628 (19th January 2008) 171,008 Windows Vista SP1
6.0.6002.18005 49E036F3 (11th April 2009) 171,008 Windows Vista SP2
6.1.7600.16385 4A5BD9B6 (13th July 2009) 292,352 Windows 7
6.1.7601.17514 4CE7B73E (20th November 2010) 295,936 Windows 7 SP1
6.2.9200.16384 5010AB48 (25th July 2012) 673,792 Windows 8
6.3.9600.16384 52158E39 (22nd August 2013) 618,496 Windows 8.1
6.3.9600.17031 53088706 (22nd February 2014) 617,472 Windows 8.1 With Update
10.0.10240.16384 559F3B08 (9th July 2015) 576,000 Windows 10

64-Bit Windows

File Version File Header Date Stamp File Size Package
5.2.3790.1830 42438B4F (24th March 2005) 246,784 Windows Server 2003 SP1
5.2.3790.3959 45D6CBF8 (17th February 2007) 246,784 Windows Server 2003 SP2
6.0.6000.16386 4549D247 (2nd November 2006) 205,824 Windows Vista
6.0.6001.18000 4791AC7A (19th January 2008) 200,192 Windows Vista SP1
6.0.6002.18005 49E040B0 (11th April 2009) 200,704 Windows Vista SP2
6.1.7600.16385 4A5BDEAC (13th July 2009) 338,432 Windows 7
6.1.7601.17514 4CE7C496 (20th November 2010) 342,016 Windows 7 SP1
6.2.9200.16384 5010A992 (25th July 2012) 635,392 Windows 8
6.3.9600.16384 5215F754 (22nd August 2013) 558,080 Windows 8.1
6.3.9600.17031 530892FA (22nd February 2014) 545,792 Windows 8.1 With Update
10.0.10240.16384 559F389C (9th July 2015) 476,672 Windows 10