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Libraries 213,105
Validated Hashes 1,838,869
Queued for Validation 20,303
Quarantined 2,356

System.IO.Compression.FileSystem.dll

SHA256: 3d40f12369e312eeca010de207ae1cdc4d16c878074edaa13d5fd1ff1c6e6013

SHA1: f4cb177e78e122456a6a46456858367f2851f9fa

MD5: b9418597c99e07c1445ddf47a63991e1

Metadata

Integrity Check
Passed
Metadata
Complete
Company
Microsoft Corporation
Product
Microsoft® .NET Framework
Description
N/A
Build Note
N/A
Copyright
N/A
Architecture
x86 (32 bit)
Version
4.6.31327.1
Product Version
4.6.31327.1
Backwards Friendly
4.0 (Windows 95)

Security Scan

Last Validated
2026-08-20
First Upload
2022-10-26
Uncompressed Size
13.9KB
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.