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

System.IO.Compression.FileSystem.dll

SHA256: 8e00a27242cb3bf8ad4690c3d7f7521285ce36a38936df6322b9311736f30102

SHA1: e7e175686f61f30557c643ab9fcdffa86b091010

MD5: 66fea80d66e5fdec1e509d7a814c7289

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
4.7.2558.0
Product Version
4.7.2558.0
Backwards Friendly
4.0 (Windows 95)

Security Scan

Last Validated
2026-08-20
First Upload
2022-10-26
Uncompressed Size
23.2KB
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.