DLL

System.Composition.Runtime.dll

Download and install System.Composition.Runtime.dll to fix missing or corrupted DLL errors.

(74 Files Available)
Last Updated
Downloads

Repository Analysis

Company
Microsoft Corporation
Product
Microsoft® .NET
Description
System.Composition.Runtime
Architecture
x86 (32 bit) ARM64 x86-64 (64 bit)
Metadata Consensus
42/74 Files 56.8%
Higher percentages indicate stronger agreement across versions. Browse repository metadata to compare variant differences.

Frequently Asked Questions

What is System.Composition.Runtime.dll?

Metadata analysis shows System.Composition.Runtime.dll is a Dynamic Link Library (DLL) developed by Microsoft Corporation for Microsoft® .NET and is described as “System.Composition.Runtime” .

DLL files (Dynamic Link Libraries) are shared core modules used by Windows programs to run efficiently without duplicating code. Most errors occur because the DLL is missing, corrupted, or outdated. In many cases, reinstalling the related application, repairing Windows, or replacing the DLL resolves the issue.

How do I fix missing DLL errors?
1

Software Fix

Fully uninstall and reinstall the program causing the error. If you are not sure what program is broken, look at the available file metadata above for hints. If a clean reinstall fails, download and install the DLL file manually.

2

Windows System Fix

Make sure Windows is fully updated. To repair system files automatically, right-click the Start menu, open PowerShell (Admin), and run these two commands in order:

Step A DISM /Online /Cleanup-Image /RestoreHealth
Step B sfc /scannow
How do I install DLL files?
1

Download & Extract

Download the file, right-click the folder, and extract all files to your computer.

2

Install the .DLL

Move the extracted DLL file into the root folder of the software that is giving you the error (where its .exe file is located), or place it in the system directory below:

32-bit → C:\Windows\SysWOW64
64-bit → C:\Windows\System32
3

Restart the Program

Close and reopen the program or game so Windows can look for and load the new DLL file.

How do I register DLL files?

Most DLL files do not need registration. However, if your file is a COM component and requires explicit system registration, follow these steps:

1

Open Terminal

Right-click the Start menu and open PowerShell (Admin) or Command Prompt (Admin).

2

Run Command

Type the command below for your file type and press Enter. You can drag and drop the DLL file directly into the terminal window to fill its path automatically.

64-bit regsvr32 "C:\path\to\filename.dll"
32-bit C:\Windows\SysWOW64\regsvr32 "C:\path\to\filename.dll"

Latest Releases

NEW Verified
System.Composition.Runtime.dll
by Microsoft Corporation
for Microsoft® .NET
System.Composition.Runtime
Contains runtime components of the Managed Extensibility Framework (MEF).
Version: 10.0.1026.32716
Product Version: 10.0.10+f7d90799ce4ef09a0bb257852a57248d2a8fb8dd
Language: - (0)
Uploaded: Aug 18, 2026   Size: 29.3KB
SHA256: 36c451a2e68f47b975b36ba74cb7b51566b1721b1f7ebeea68c8216a125f86db
SHA1: 7598ead233c0d625147c0a801de8a2174090a7d0
MD5: 5669db4bb6a9d4a4aaf6768859fc90d6
x86 – 32 Bit
IA-32, 32-bit
DOWNLOAD
NEW Verified
System.Composition.Runtime.dll
by Microsoft Corporation
for Microsoft® .NET
System.Composition.Runtime
Contains runtime components of the Managed Extensibility Framework (MEF).
Version: 10.0.826.23019
Product Version: 10.0.8+94ea82652cdd4e0f8046b5bd5becbd11461482ca
Language: - (0)
Uploaded: Aug 18, 2026   Size: 25.3KB
SHA256: 8ec17bae8665ff58e6b761bb2507acd1827bd84b5ad6bc92234ca2a108df2a85
SHA1: 1008507cc93736c27eb62ce3149653d57dab77c0
MD5: 9c39fa72320b591d5b19165af8fb4b3f
x86 – 32 Bit
IA-32, 32-bit
DOWNLOAD
NEW Verified
System.Composition.Runtime.dll
by Microsoft Corporation
for Microsoft® .NET
System.Composition.Runtime
Contains runtime components of the Managed Extensibility Framework (MEF).
Version: 10.0.826.23019
Product Version: 10.0.8+94ea82652cdd4e0f8046b5bd5becbd11461482ca
Language: - (0)
Uploaded: Aug 18, 2026   Size: 26.3KB
SHA256: 6d9e9ff585862c1d0f8212c87b47f0d1d3fa576a6604f31e38f6d330f685dccf
SHA1: e4d54a483b8610b77b07ebbb23b325e6f291a327
MD5: b1a9235f456988eff926ddc7854b7af2
x86 – 32 Bit
IA-32, 32-bit
DOWNLOAD
NEW Verified
System.Composition.Runtime.dll
by Microsoft Corporation
for Microsoft® .NET
System.Composition.Runtime
Contains runtime components of the Managed Extensibility Framework (MEF).
Version: 10.0.826.23019
Product Version: 10.0.8+94ea82652cdd4e0f8046b5bd5becbd11461482ca
Language: - (0)
Uploaded: Aug 18, 2026   Size: 29.3KB
SHA256: a801e92b98a9810638bb4913485828921e8735c56a2689f4a088bd0eb59aac71
SHA1: b0c220ef57a1c5ca7df6b49aef76c168479dfd9d
MD5: 7b9f9fe24043ca63a3921d209ec664c7
x86 – 32 Bit
IA-32, 32-bit
DOWNLOAD
NEW Verified
System.Composition.Runtime.dll
by Microsoft Corporation
for Microsoft® .NET
System.Composition.Runtime
Contains runtime components of the Managed Extensibility Framework (MEF).
Version: 10.0.1126.37416
Product Version: 10.0.11+e2f47b0110ed922f21a1522da67279133ce28f32
Language: - (0)
Uploaded: Aug 18, 2026   Size: 26.3KB
SHA256: 45d7618eea953f99e5cbc92d7f7f6534b56e1db2024ad4b87adde5d09a804dac
SHA1: db0b77d0b04e60563e257113a402669ffb710841
MD5: ed2722515f276bb82768c6f4b5a2e877
x86 – 32 Bit
IA-32, 32-bit
DOWNLOAD