Safe
Free
DLL Vault

Windows System Components

Published by Microsoft

Core Windows system DLLs that are part of the operating system. These files should not normally be replaced manually.

Why You Need This

System DLLs like kernel32.dll, ntdll.dll, and user32.dll are core Windows components. If these are missing or corrupted, you should run Windows System File Checker (sfc /scannow) or repair your Windows installation rather than downloading individual files.

DLLs Included (4795)

ApiSetHost.AppExecutionAlias.dll x64
140 KB
ApiSetHost.AppExecutionAlias.dll x86
96.5 KB
apisetschema.dll x64
140.32 KB
APMon.dll x64
1.37 MB
APMon.dll x86
1.12 MB
APMonUI.dll x64
76 KB
APMonUI.dll x86
41.5 KB
AppContracts.dll x64
828.56 KB
AppContracts.dll x86
776.78 KB
AppExtension.dll x64
228 KB
AppExtension.dll x86
142 KB
apphelp.dll x64
589.49 KB
apphelp.dll x86
645.61 KB
Apphlpdm.dll x64
52 KB
Apphlpdm.dll x86
29.5 KB
appidapi.dll x64
89.12 KB
appidapi.dll x86
54.45 KB
AppIdPolicyEngineApi.dll x64
368 KB
AppIdPolicyEngineApi.dll x86
297 KB
appidsvc.dll x64
108 KB
appinfo.dll x64
232 KB
appinfoext.dll x64
32 KB
AppInstallerPrompt.Desktop.dll x64
72 KB
AppInstallerPrompt.Desktop.dll x86
44.5 KB
ApplicationFrame.dll x64
692 KB
AppLockerCSP.dll x64
356 KB
AppLockerCSP.dll x86
284 KB
AppManagementConfiguration.dll x64
172 KB
AppManagementConfiguration.dll x86
133 KB
appmgmts.dll x64
220 KB
appmgmts.dll x86
158.5 KB
appmgr.dll x64
444 KB
appmgr.dll x86
368.5 KB
AppointmentActivation.dll x64
172 KB
AppointmentActivation.dll x86
116 KB
AppointmentApis.dll x64
892 KB
AppointmentApis.dll x86
642.5 KB
appraiser.dll x64
2.08 MB
AppReadiness.dll x64
724 KB
apprepapi.dll x64
36 KB
apprepapi.dll x86
11 KB
AppResolver.dll x64
666.15 KB
AppResolver.dll x86
477.68 KB
appsruprov.dll x64
208 KB
AppVCatalog.dll x64
604.32 KB
AppvClientEventLog.dll x64
228 KB
AppVClientPS.dll x64
60.33 KB
AppVClientPS.dll x86
26.82 KB
AppVEntStreamingManager.dll x64
720.32 KB
AppVEntSubsystemController.dll x64
1.21 MB

Download Official Installer

Recommended: Install the full package

These are core Windows system files. If corrupted, run sfc /scannow in Command Prompt as Administrator.

Official Microsoft download
Digitally signed installer
Installs all 4795 required DLLs

Don't Download Individual DLLs

Installing the full runtime package is always the correct solution. Individual DLL downloads rarely fix the underlying issue and can cause additional problems.