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Kernel & System
Ntoskrnl is the core of Windows and provides key system services such as hardware virtualization, process and memory management. . Ntoskrnl contains the Cache Manager, the Executive, the Kernel, the Security Reference Monitor, the Memory Manager, and the Scheduler, along with other components. It also provides key portions of the Native Application Programming Interface used by device drivers. This version does not use Physical Address Extension.
There are four source versions of the kernel, of which only one is used as follows:
NTOSKRNL.EXE, single-processor without PAE
NTKRNLMP.EXE, multi-processor without PAE
NTKRNLPA.EXE, single-processor with PAE (XP and later)
NTKRPAMP.EXE, multi-processor with PAE (XP and later)
Ntoskrnl.exe is a 32-bit executable that requires no direct user interface.
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Key Facts from within File
These are the direct values are extracted from the file. These are defined by the original developer. Some items may be unspecified, mistyped or out of date.
The WinSxS directory holds Windows Side-by-Side DLLs. WinSxS allows multiple versions of the same DLL (code libraries) to exist on the same system. This ensures that every application will get the DLL version they were tested and designed for. The result is improved application and system stability.
The two security hashes for Ntoskrnl.exe were created from the original file. The security hash is created by scanning all bytes within the file. Identical files should have the same hashes. SHA1 is considered the more secure than the older MD5 hash.
files are required when running this program. These may call other files, and there can be additional required files not in this list.
Our analysis shows that over 688 different files internally use Ntoskrnl.exe.
Internal Resource Counts
Resources are read-only content stored within the file. It is mostly used to hold graphics, strings, menus and dialog templates, although other types are occasionally used. See our section on Resources Help for more details.
While we believe this information up to date and accurate, FAQware is not responsible for any inaccuracies. If you find something that is out of date or inaccurate, please let us know at
so we can correct it.