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

System.IO.Compression.FileSystem.dll

SHA256: f6d8fd95befdc8a0f05583849331e772667ee1b2b2f3ac0d3d7f54d24cdfc471

SHA1: ade9b31136a269c36230446e3e1559b0a4b896ed

MD5: 920abee18039cd63223007294cffe027

Metadata

Integrity Check
Passed
Metadata
Complete
Company
Microsoft Corporation
Product
Microsoft® .NET
Description
System.IO.Compression.FileSystem
Build Note
System.IO.Compression.FileSystem
Copyright
© Microsoft Corporation. All rights reserved.
Architecture
x86 (32 bit)
Version
10.0.25.52411
Product Version
10.0.0+b0f34d51fccc69fd334253924abd8d6853fad7aa
Backwards Friendly
4.0 (Windows 95)

Security Scan

Last Validated
2026-08-28
First Upload
2026-08-28
Uncompressed Size
15.3KB
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.