Safe
Free

msasn1.dll

x64 Windows System
Verified

This is a Core Windows System File

msasn1.dll is a critical Windows component. If it's missing or corrupted, you should repair Windows rather than replace the file manually.

Recommended: Run System File Checker

sfc /scannow

Open Command Prompt as Administrator and run this command.

Why You Shouldn't Just Download the DLL

  • DLLs depend on other DLLs - copying one file won't fix the chain
  • Runtime packages register components in Windows correctly
  • Version mismatches can cause more problems
  • The official installer handles all of this automatically

Compatibility

Windows Server 2022 Windows Server 2019 Windows Server 2016

File Details

Name
msasn1.dll
Size
81.07 KB
Version
10.0.20348
Architecture
x64
Source
Windows system
Part of
Windows System

Hash Verification

dd1643dae0cf191dea5d7a24b8695ca5c13d5875ed710d83edc58ca99d464bad
bd3b1adbe838dd27fe6c1079c3776a7d
ADVANCED

Manual DLL Download

Only if installer doesn't work

This is a last resort. Try the official installer first.
Download ZIP

81.07 KB | x64

20 downloads

Manual Installation Steps
  1. 1 Extract the ZIP file
  2. 2 Copy to C:/Windows/System32/
  3. 3 If needed: regsvr32 msasn1.dll

Official Microsoft source

Malware scanned

SHA-256 verified

Other Versions

msasn1.dll
x86