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DLL

System.IO.Compression.FileSystem.dll

Download and install System.IO.Compression.FileSystem.dll to fix missing or corrupted DLL errors.

(556 Files Available)
Last Updated
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Repository Analysis

Company
Microsoft Corporation
Product
Microsoft® .NET
Description
System.IO.Compression.FileSystem
Architecture
x86 (32 bit) x86-64 (64 bit) Unknown Unknown Unknown ARM64
Metadata Consensus
245/556 Files 44.1%
Higher percentages indicate stronger agreement across versions. Browse repository metadata to compare variant differences.

Companies

  • Microsoft Corporation 306
  • Mono development team 180
  • Unknown 70

Products

  • Microsoft® .NET 245
  • Mono Common Language Infrastructure 180
  • Microsoft® .NET Framework 60
  • Microsoft® .NET Core 1
  • Unknown 70

Descriptions

  • System.IO.Compression.FileSystem 250
  • System.IO.Compression.FileSystem.dll 209
  • Unknown 97

Frequently Asked Questions

What is System.IO.Compression.FileSystem.dll?

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

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 Most errors occur because the DLL is missing, corrupted, or outdated.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.IO.Compression.FileSystem.dll
by Mono development team
for Mono Common Language Infrastructure
System.IO.Compression.FileSystem.dll
System.IO.Compression.FileSystem.dll
Version: 4.0.30319.17020
Product Version: 4.0.30319.17020
Language: - (0)
Uploaded: Aug 30, 2026   Size: 18KB
SHA256: 23a3a2abd749639228207977822b1684384ee827daa53d08752d8194dbcc951b
SHA1: 517fa86c2be6502d8dc6a367813b13a3429033ab
MD5: bc4bc589a54ef475b8f68378bdfa3868
x86 – 32 Bit
IA-32, 32-bit
DOWNLOAD
NEW Verified
System.IO.Compression.FileSystem.dll
by Mono development team
for Mono Common Language Infrastructure
System.IO.Compression.FileSystem.dll
System.IO.Compression.FileSystem.dll
Version: 4.6.57.0
Product Version: 4.6.57.0
Language: - (0)
Uploaded: Aug 30, 2026   Size: 18KB
SHA256: 986d1fd98fee6ccf476a6140e34ad617efe726ece0b05741106d9b79bc4a77c9
SHA1: 9220f407e599fbca8e23f7166ee33ce148d00380
MD5: 0b983e97782243e38cffbc767ec6dea6
x86 – 32 Bit
IA-32, 32-bit
DOWNLOAD
NEW Verified
System.IO.Compression.FileSystem.dll
by Mono development team
for Mono Common Language Infrastructure
System.IO.Compression.FileSystem.dll
System.IO.Compression.FileSystem.dll
Version: 4.0.30319.17020
Product Version: 4.0.30319.17020
Language: - (0)
Uploaded: Aug 30, 2026   Size: 18KB
SHA256: 2fb95eb0d07d964b6ae531737258d3a51df18e8c9e59369283dbeb7f1b90d02d
SHA1: 59e36482c554d60a5df931babed34ed8646102c7
MD5: 49b922926cc3c84c445d3048f472192d
x86 – 32 Bit
IA-32, 32-bit
DOWNLOAD
NEW Verified
System.IO.Compression.FileSystem.dll
by Mono development team
for Mono Common Language Infrastructure
System.IO.Compression.FileSystem.dll
System.IO.Compression.FileSystem.dll
Version: 4.6.57.0
Product Version: 4.6.57.0
Language: - (0)
Uploaded: Aug 30, 2026   Size: 18KB
SHA256: 4dd8f2cd6bfeb24aa7873d5e1653e58a40116d35d6bbefea54ad0b8f4791916d
SHA1: a5942124aa225b3250cf1a3a17238059e5d4fdef
MD5: 7fd27f344686c0f3cd564f6db1181985
x86 – 32 Bit
IA-32, 32-bit
DOWNLOAD
NEW Verified
System.IO.Compression.FileSystem.dll
by Mono development team
for Mono Common Language Infrastructure
System.IO.Compression.FileSystem.dll
System.IO.Compression.FileSystem.dll
Version: 4.6.57.0
Product Version: 4.6.57.0
Language: - (0)
Uploaded: Aug 30, 2026   Size: 18KB
SHA256: 46e4e1d5b17fd8292f5ee6a3596c78b6b7319d1e981902863427ab07e3f930d3
SHA1: 86c272e6379aa8cc6ff1d0fff072ed7dc1f1cb76
MD5: 2ab2cce26600bc88770fa8d2660d96e7
x86 – 32 Bit
IA-32, 32-bit
DOWNLOAD