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DLL

System.IO.Compression.dll

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

(779 Files Available)
Last Updated
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Repository Analysis

Company
Microsoft Corporation
Product
Microsoft® .NET Framework
Description
System.IO.Compression
Architecture
x86 (32 bit) x86-64 (64 bit) ARM64 Unknown Unknown Unknown Unknown Unknown ARM (Thumb 2)
Metadata Consensus
155/779 Files 19.9%
Higher percentages indicate stronger agreement across versions. Browse repository metadata to compare variant differences.

Companies

  • Microsoft Corporation 271
  • Mono development team 181
  • Unknown 327

Products

  • Mono Common Language Infrastructure 181
  • Microsoft® .NET Framework 155
  • Microsoft® .NET 112
  • Microsoft® .NET Core 4
  • Unknown 327

Descriptions

  • System.IO.Compression 229
  • System.IO.Compression.dll 205
  • .NET Framework 17
  • Unknown 328

Frequently Asked Questions

What is System.IO.Compression.dll?

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

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 Most errors occur because the DLL is missing, corrupted, or outdated.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.dll
by Mono development team
for Mono Common Language Infrastructure
System.IO.Compression.dll
System.IO.Compression.dll
Version: 4.6.57.0
Product Version: 4.6.57.0
Language: - (0)
Uploaded: Aug 30, 2026   Size: 112KB
SHA256: 13ea5ad6ea4ce2c1a207aba20801ffc0272fa3015a5f9daa18c0f5d8dfee1201
SHA1: ba1ffaa0971fed59e5223b341145b29fbb7704c4
MD5: df5529468096331956ce2e8666f47796
x86 – 32 Bit
IA-32, 32-bit
DOWNLOAD
NEW Verified
System.IO.Compression.dll
by Mono development team
for Mono Common Language Infrastructure
System.IO.Compression.dll
System.IO.Compression.dll
Version: 4.0.30319.17020
Product Version: 4.0.30319.17020
Language: - (0)
Uploaded: Aug 30, 2026   Size: 112KB
SHA256: 3f83092835ce3f34fa51073c9e6b2abfbdc0082853cdd3ab78321431eb6a79af
SHA1: ccf5ee69c457080f3dc4f8c5b28113e3a6651d23
MD5: d219b23085dd1e7e9b8eae26b5342612
x86 – 32 Bit
IA-32, 32-bit
DOWNLOAD
NEW Verified
System.IO.Compression.dll
by Mono development team
for Mono Common Language Infrastructure
System.IO.Compression.dll
System.IO.Compression.dll
Version: 4.6.57.0
Product Version: 4.6.57.0
Language: - (0)
Uploaded: Aug 30, 2026   Size: 113KB
SHA256: 748040d20b80ecdc95a79729e7514afb9133b8aeb29fc91b210f316be8287aaf
SHA1: 65f090f93e14876fdfd202fad6ed9a27db29464f
MD5: 242e4090d5841269396e4b7a053f0da6
x86 – 32 Bit
IA-32, 32-bit
DOWNLOAD
NEW Verified
System.IO.Compression.dll
by Mono development team
for Mono Common Language Infrastructure
System.IO.Compression.dll
System.IO.Compression.dll
Version: 4.0.30319.17020
Product Version: 4.0.30319.17020
Language: - (0)
Uploaded: Aug 30, 2026   Size: 112KB
SHA256: b43cac4175d0ceb5b9a43ae8c1ef56975231cb671b6a51e1a5f178cc4ea88262
SHA1: f11cc02404eef09e11a70976c2ac99fb61b02adf
MD5: da2dce4cb5c376def9e69d3f534248c1
x86 – 32 Bit
IA-32, 32-bit
DOWNLOAD
NEW Verified
System.IO.Compression.dll
by Mono development team
for Mono Common Language Infrastructure
System.IO.Compression.dll
System.IO.Compression.dll
Version: 4.6.57.0
Product Version: 4.6.57.0
Language: - (0)
Uploaded: Aug 30, 2026   Size: 113KB
SHA256: 690d5b9ff40c6f95c08a80a85dc504a7d407b8b42758bd9204063ed4398ca7c5
SHA1: 4ee81a616264c1017b62944b523814cd3ac69257
MD5: 1ab298303e4c799c7b795522ee33a7c5
x86 – 32 Bit
IA-32, 32-bit
DOWNLOAD