system.io.compression.filesystem.dll - Analyze and Virus check.
★★★★★ Verified File (27.08.2026)⚠️ Important Notice: Discover optimizations and functionalities offered by
system.io.compression.filesystem.dllfor efficient file handling and compression in .NET applications. Manually replacing system libraries can brick future Windows updates or cause critical system failures.
| Architecture: | 32-bit (x86) | Compatible with 32 and 64-bit Windows |
| File version | 9.0.1125.51716 | |
| Antivirus scan | ✅ Clean | No viruses detected. |
| Digital signature | ✅ Have signed | File have signature, it is original file. |
| Hash Integrity | ✅ MD5: Verified | File Hash protection is missing. |
| File size | 15.3 kb. | 15624 bytes. |
Hashes:
MD5: 6504ef39f9598d32448ac1226bdbf870 ✅SHA-1: 19aaca5f4e60fd36559ac7f8ad63fb6c040a5e90
SHA-256: 82df6b53ba8bd2039d83574a07d262b763501851ed0d3d872eac13cc1c02cf89
SHA-512: c0ffd43b94c6585664e0831a6d90771393579ed0a7209b28ab52f8bbc5d46fe5b35cfa3e0b59ef3174dd4981331e5709e7d7d7ae6c53c57b31196a6736beea3a
Digital file signature system.io.compression.filesystem.dll ✅
Publisher: Microsoft Corporation
Issuer: Microsoft Code Signing PCA 2011
Encryption algorithm: SHA256
Time stamp: Oct 18 02:34:56 2025 GMT
Issuer: Microsoft Code Signing PCA 2011
Encryption algorithm: SHA256
Time stamp: Oct 18 02:34:56 2025 GMT
✅ This file is compatible with 32-bit Windows and can run on ✅ 64-bit Windows (via the WOW64 subsystem).
📊 Diagnostics Tool: Verify Your system.io.compression.filesystem.dll File
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Connected files:mscoree.dll
└──
System.IO.Compression.FileSystem.dllOther versions:
️ system.io.compression.filesystem.dll 4.700.22.36301 64-bit (x64)
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Microsoft Corporation