Microsoft IIS Compression

by Microsoft Corporationv1.0.06502

Last updated Jun 8, 2026

A bundle of two IIS compression scheme providers iisbrotli.dll and iiszlib.dll that enable IIS to compress HTTP response contents. iisbrotli.dll supports Brotli compression, while iiszlib.dll supports both Gzip and Deflate compression.

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Install with winget

$ winget install --id Microsoft.IIS.Compression --exact --version 1.0.06502

Run in Command Prompt, PowerShell, or Windows Terminal. Prompts for any agreements.

Silent install command for Microsoft IIS Compression

Microsoft IIS Compression uses MSI (WiX). The silent install switches are /quiet /norestart.

One-line silent install (x64)

msiexec.exe /i iiscompression_amd64.msi /quiet /norestart

See the full silent install reference for Microsoft IIS Compression →

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Installers · v1.0.06502

Architecture	Type	Scope	Install	Download
x86	MSI WiX	-		Direct
x64	MSI WiX	-		Direct

Copy a command tailored to that specific architecture, type, and scope - useful when winget would otherwise pick a different default.

Security

2 known CVEs via NVD

nonePatched in wingetCVE-2007-0087Jan 5, 2007
Microsoft Internet Information Services (IIS), when accessed through a TCP connection with a large window size, allows remote attackers to cause a denial of service (network bandwidth consumption) via a Range header that specifies multiple copies of the same fragment. NOTE: the...
noneFix availableCVE-2006-6579affects <=5.0Dec 15, 2006
Microsoft Windows XP has weak permissions (FILE_WRITE_DATA and FILE_READ_DATA for Everyone) for %WINDIR%\pchealth\ERRORREP\QHEADLES, which allows local users to write and read files in this folder, as demonstrated by an ASP shell that has write access by IWAM_machine and read ac...

Source: NVD, updated 2h ago. Patch status is best-effort: NVD's fix version is compared against the latest version in winget, but the two version formats don't always align. Confirm with the vendor advisory before treating any specific build as safe.

See a CVE that affects your fleet? Push the patched version to Intune in one click with Pckgr.

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Frequently asked questions

How do I install Microsoft IIS Compression on Windows?

Open Windows Terminal, PowerShell, or Command Prompt and run: winget install --id Microsoft.IIS.Compression --exact --version 1.0.06502. winget downloads the installer from Microsoft Corporation and runs it. Requires Windows 10 (1809+) or Windows 11.

How do I install Microsoft IIS Compression silently for unattended deployment?

Add --silent and accept the agreements upfront: winget install --id Microsoft.IIS.Compression --exact 1.0.06502 --silent --accept-package-agreements --accept-source-agreements. This is the variant Intune, Configuration Manager, and other deployment tools should use.

What are the silent install switches for Microsoft IIS Compression?

Microsoft IIS Compression uses MSI (WiX). Run the downloaded installer with: msiexec.exe /i iiscompression_amd64.msi /quiet /norestart. The silent switches are /quiet /norestart.

How do I uninstall Microsoft IIS Compression via winget?

Run: winget uninstall --id Microsoft.IIS.Compression --exact. Add --silent for unattended uninstalls. winget will use the registered uninstaller from Microsoft IIS Compression's Apps & Features entry.

Is Microsoft IIS Compression free?

Microsoft IIS Compression is distributed under MIT. Refer to the publisher (https://github.com/microsoft/IIS.Compression) for the full license terms - Wingetly itself does not charge for installation.

Does Microsoft IIS Compression work on Windows 10?

Yes, as long as your Windows 10 build supports winget (1809 or newer). winget ships with App Installer on Windows 10/11 and pulls Microsoft IIS Compression directly from the publisher.

How do I keep Microsoft IIS Compression up to date?

Run winget upgrade --id Microsoft.IIS.Compression --exact, or winget upgrade --all to update everything winget tracks. We index 1 version of Microsoft IIS Compression from microsoft/winget-pkgs.