Geoff Chappell, Software Analyst
ApiSetSchema.dll was introduced for Windows 7.
| File Version | Distribution |
|---|---|
| 6.1 | Windows 7 Windows Server 2008 R2 |
| 6.2 | Windows 8 |
| 6.3 | Windows 8.1 |
| 10.0 | Windows 10 |
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 |
|---|---|---|---|
| 6.1.7600.16385 | 4A5BD9B5 (13th July 2009) | 6,656 | Windows 7 Windows 7 SP1 |
| 6.2.9200.16384 | 5010B65C (25th July 2012) | 46,320 | Windows 8 |
| 6.3.9600.16384 | 52159A73 (22nd August 2013) | 70,496 | Windows 8.1 Windows 8.1 Update |
| 10.0.10240.16384 | 559F4063 (9th July 2015) | 91,488 | Windows 10 |
Where two packages are shown together, exactly the same ApiSetSchema.dll file is in each. For instance, the same file is installed for both the original Windows 7 and its service pack.
| File Version | File Header Date Stamp | File Size | Package |
|---|---|---|---|
| 6.1.7600.16385 | 4A5BDEAB (13th July 2009) | 6,656 | Windows 7 Windows Server 2008 R2 Windows 7 SP1 |
| 6.2.9200.16384 | 5010B373 (25th July 2012) | 46,320 | Windows 8 |
| 6.3.9600.16384 | 52160049 (22nd August 2013) | 70,496 | Windows 8.1 Windows 8.1 Update |
| 10.0.10240.16384 | 559F3E3D (9th July 2015) | 92,000 | Windows 10 |
Again, where two packages are shown together, exactly the same ApiSetSchema.dll file is in each. For intance, not only are the ApiSetSchema.dll files for Windows 7 and Windows Server 2008 R2 identical, but so too is the file that’s installed for Windows 7 SP1.