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Validated Hashes 1,838,869
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Quarantined 2,356

System.IO.Compression.FileSystem.dll

SHA256: ba73637c8d819388b0ed36c342f367088709b10b69e20af04d398e2457d6311b

SHA1: b17c7eeb5ac1eb6f6ccb377dc8f09390616e1c25

MD5: 311b35235ec8c5ea1424ce25dbe5a64c

Metadata

Integrity Check
Passed
Metadata
Complete
Company
Mono development team
Product
Mono Common Language Infrastructure
Description
System.IO.Compression.FileSystem.dll
Build Note
System.IO.Compression.FileSystem.dll
Copyright
(c) Various Mono authors
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
2026-08-30
First Upload
2026-08-30
Uncompressed Size
18KB
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.