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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: 111126e382acf25c9de9d50fc206403bcef76e884cd00ac2bf003cffc48e8c6b

SHA1: 0ba58cc15f102716d7ffc8b6382e10e16744cb92

MD5: c17271b73a1512bd9fe38dbffe4cc243

Metadata

Integrity Check
Passed
Metadata
Complete
Company
Microsoft Corporation
Product
Microsoft® .NET Framework
Description
System.IO.Compression.FileSystem.dll
Build Note
System.IO.Compression.FileSystem.dll
Copyright
© Microsoft Corporation. All rights reserved.
Architecture
x86 (32 bit)
Version
4.6.57.0
Product Version
4.6.57.0
Backwards Friendly
4.0 (Windows 95)

Security Scan

Last Validated
2025-09-19
First Upload
2025-09-19
Uncompressed Size
24.6KB
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.