Windows user-mode subsystem
E724268
The Windows user-mode subsystem is the collection of user-space components and libraries that provide core operating system services and APIs to applications on Microsoft Windows.
All labels observed (4)
| Label | Occurrences |
|---|---|
| Windows Smart Card subsystem | 1 |
| Windows subsystem for Windows Store apps (with restrictions) | 1 |
| Windows user subsystem | 1 |
| Windows user-mode subsystem canonical | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T8288288 — resolving that mention is where its identity was fixed. The disambiguator weighed these candidate entities and picked the highlighted one (or “None”, minting a new entity). This is how homonymy is resolved: the same surface form can point to different entities.
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: Windows user-mode subsystem Context triple: [Kernel32, partOf, Windows user-mode subsystem]
-
A.
Windows User Mode Exploit Development
Windows User Mode Exploit Development is a specialized Offensive Security training course focused on teaching advanced techniques for discovering and exploiting vulnerabilities in Windows user-mode applications.
-
B.
Windows Driver Model
Windows Driver Model is Microsoft’s unified framework for developing and managing device drivers across different versions of the Windows operating system.
-
C.
Windows core technologies
Windows core technologies are the fundamental system components and infrastructure layers that power the Windows operating system’s kernel, hardware interaction, and essential platform services.
-
D.
Windows SDK
Windows SDK is Microsoft's official collection of tools, headers, libraries, and documentation used by developers to build applications for the Windows operating system.
-
E.
Kernel32
Kernel32 is a core Windows system library that provides fundamental kernel-level functions for process, memory, and thread management in the Win32 API.
- F. None of above. chosen
- G. Unsure - the case is ambiguous/there is not enough information to decide.
NED2
Entity disambiguation (via description)
gpt-5-mini-2025-08-07
Target entity: Windows user-mode subsystem Target entity description: The Windows user-mode subsystem is the collection of user-space components and libraries that provide core operating system services and APIs to applications on Microsoft Windows.
-
A.
Windows User Mode Exploit Development
Windows User Mode Exploit Development is a specialized Offensive Security training course focused on teaching advanced techniques for discovering and exploiting vulnerabilities in Windows user-mode applications.
-
B.
Windows Driver Model
Windows Driver Model is Microsoft’s unified framework for developing and managing device drivers across different versions of the Windows operating system.
-
C.
Windows core technologies
Windows core technologies are the fundamental system components and infrastructure layers that power the Windows operating system’s kernel, hardware interaction, and essential platform services.
-
D.
Windows SDK
Windows SDK is Microsoft's official collection of tools, headers, libraries, and documentation used by developers to build applications for the Windows operating system.
-
E.
Kernel32
Kernel32 is a core Windows system library that provides fundamental kernel-level functions for process, memory, and thread management in the Win32 API.
- F. None of above. chosen
Statements (53)
| Predicate | Object |
|---|---|
| instanceOf |
Windows subsystem
ⓘ
operating system component ⓘ |
| contrastsWith | Windows kernel-mode subsystem ⓘ |
| designedFor |
application compatibility across Windows versions
ⓘ
isolation between applications and kernel ⓘ |
| includes |
Client Server Runtime Subsystem
ⓘ
Windows Session Manager ⓘ Windows logon process ⓘ Windows subsystem processes ⓘ csrss.exe ⓘ smss.exe ⓘ system DLLs such as advapi32.dll ⓘ system DLLs such as gdi32.dll ⓘ system DLLs such as kernel32.dll ⓘ system DLLs such as user32.dll ⓘ system DLLs such as ws2_32.dll ⓘ user-mode device drivers in some configurations ⓘ winlogon.exe ⓘ |
| interactsWith |
Windows graphical subsystem
ⓘ
Windows kernel ⓘ
linked to:
ntoskrnl.exe
Windows security subsystem ⓘ |
| partOf |
Microsoft Windows operating system
ⓘ
linked to:
Windows
|
| presentIn |
Windows 10
ⓘ
Windows 11 ⓘ Windows 2000 ⓘ Windows 7 ⓘ Windows 8 ⓘ Windows NT family of operating systems ⓘ
linked to:
Windows NT
Windows Vista ⓘ Windows XP ⓘ |
| provides |
.NET Framework services
ⓘ
Universal Windows Platform APIs ⓘ
linked to:
Universal Windows Platform
Win32 API ⓘ core operating system services to user-mode applications ⓘ graphical user interface APIs ⓘ user-mode I/O and file system APIs ⓘ user-mode memory management interfaces ⓘ user-mode networking APIs ⓘ user-mode process and thread management interfaces ⓘ user-mode security and authentication APIs ⓘ user-mode system libraries ⓘ |
| responsibleFor |
creating user-mode processes
ⓘ
loading and linking user-mode libraries ⓘ managing user sessions ⓘ providing windowing and message-passing services ⓘ translating many Win32 API calls into native system calls ⓘ |
| runsIn | user mode ⓘ |
| supports |
.NET applications
ⓘ
Universal Windows Platform applications ⓘ Win32 applications ⓘ console applications ⓘ graphical desktop applications ⓘ |
| uses | ntdll.dll as interface to kernel-mode services ⓘ |
How these facts were elicited
The pipeline generated the facts above by prompting gpt-5.1 with this entity's name + description and the instruction below.
Instruction
You are a knowledge base construction expert. Given a subject entity and a description of it, return factual statements that you know for the subject as a JSON list of dictionaries(triples), where keys must be "subject", "predicate" and "object". The number of facts may be very high, between 25 to 50 or more, for very popular subjects. For less popular subjects, the number of facts can be very low, like 5 or 10. # Requirements - If you don't know the subject at all, return an empty list. - If the subject is not a named entity, return an empty list. - Include at least one triple where predicate is "instanceOf". - Do not get too wordy. - Separate several objects into multiple triples with one object.
Input
Subject: Windows user-mode subsystem Description of subject: The Windows user-mode subsystem is the collection of user-space components and libraries that provide core operating system services and APIs to applications on Microsoft Windows.
Referenced by (4)
Full triples — surface form annotated when it differs from this entity's canonical label.
linked to: Windows user-mode subsystem
linked to: Windows user-mode subsystem