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DLL

System.Net.Security.dll

Download and install System.Net.Security.dll to fix missing or corrupted DLL errors.

(558 Files Available)
Last Updated
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Repository Analysis

Company
Microsoft Corporation
Product
Microsoft® .NET
Description
System.Net.Security
Architecture
x86-64 (64 bit) x86 (32 bit) ARM64 Unknown Unknown Unknown Unknown Unknown ARM (Thumb 2)
Metadata Consensus
120/558 Files 21.5%
Higher percentages indicate stronger agreement across versions. Browse repository metadata to compare variant differences.

Companies

  • Microsoft Corporation 196
  • Mono development team 38
  • Xamarin, Inc. 2
  • Unknown 322

Products

  • Microsoft® .NET 120
  • Microsoft® .NET Framework 73
  • Mono Common Language Infrastructure 40
  • Microsoft® .NET Core 3
  • Unknown 322

Descriptions

  • System.Net.Security 234
  • System.Net.Security.dll 2
  • Unknown 322

Frequently Asked Questions

What is System.Net.Security.dll?

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

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 Most errors occur because the DLL is missing, corrupted, or outdated.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 Uploads

Browse all files to filter by metadata and to view the latest version available.

NEW Verified
System.Net.Security.dll
Incomplete Metadata
Uploaded: Aug 30, 2026   Size: 606.4KB
SHA256: de450ddd2d928e737c813ca69c0e0c0ec733107cfb7275e9c5970adbd0519227
SHA1: 3e945291e68f01c7434541774ba8c269aab72d7a
MD5: a4dc6523ba620a2860d0cb9e3206614b
x64 – 64 Bit
AMD64, x86-64
DOWNLOAD
NEW Verified
System.Net.Security.dll
Incomplete Metadata
Uploaded: Aug 30, 2026   Size: 664.7KB
SHA256: 8f7b94f7228a1033bc657bbc90c1ef204cb9de4defa9acf2e8a52283e861ca71
SHA1: 92e31d1c8a675dc730aa9fc59bded671fc8167a7
MD5: 742c67000462e5dbbf2e867a2466c409
x64 – 64 Bit
AMD64, x86-64
DOWNLOAD
NEW Verified
System.Net.Security.dll
Incomplete Metadata
Uploaded: Aug 30, 2026   Size: 604.7KB
SHA256: 6577fa794e8e401538702ef720a289dd44ef0bea7c365601b622c8700d187830
SHA1: c8a669187c6d733e8fc035d197ae0e89f63525dc
MD5: 9d119fa6af1014b3fce78bac6056d742
x64 – 64 Bit
AMD64, x86-64
DOWNLOAD
NEW Verified
System.Net.Security.dll
Incomplete Metadata
Uploaded: Aug 30, 2026   Size: 605.8KB
SHA256: e7cb7362f1e908615af9f1a31020fce6188bcdfa39fa638dc87fcbf238b201f9
SHA1: 4115f73c5f6ef95f33e2cb43e8234b6717ddf92f
MD5: c89e933a5bd272ae1c66cb7e7910aa67
x64 – 64 Bit
AMD64, x86-64
DOWNLOAD
NEW Verified
System.Net.Security.dll
Incomplete Metadata
Uploaded: Aug 30, 2026   Size: 606.4KB
SHA256: 17b6858cf9846835e0eff271bcebdbfb0ebbeba83b1d6cc281d3e3c6614d39aa
SHA1: 93e45e5b6f822975d1c961c94ded77c2a694721e
MD5: 3e7c1b5dee7d2b9526661561349f9725
x64 – 64 Bit
AMD64, x86-64
DOWNLOAD