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Validated Hashes 1,838,869
Queued for Validation 20,303
Quarantined 2,356

System.IO.Compression.dll

SHA256: c6b19b1579ad957409a83aca1e194ac371fad13ba0b64cb90aa122b355bff668

SHA1: ca6488a8c04e9653b93983c95831c33f88d2cbee

MD5: 049281b0fa564b9b9f3666c8e4114d20

Metadata

Integrity Check
Passed
Metadata
Complete
Company
Microsoft Corporation
Product
Microsoft® .NET Framework
Description
System.IO.Compression.dll
Build Note
System.IO.Compression.dll
Copyright
N/A
Architecture
x86 (32 bit)
Version
4.0.30319.17929
Product Version
4.0.30319.17929
Backwards Friendly
4.0 (Windows 95)

Security Scan

Last Validated
2026-08-20
First Upload
2022-10-26
Uncompressed Size
23KB
Uploader Comment
N/A

Install Instructions

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.