iisutil.dll - Analyze and How to Fix Errors

⚠️ Important Notice: Discover information about iisutil.dll, its purpose in IIS, and how to manage it effectively. 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
Creation date	15.03.2025 05:27:58
File version	7.5.7601.27664
Antivirus scan	✅ Clean	No viruses detected.
Digital signature	🟡 Not signed	Signature missing. The file may have been modified.
Hash Integrity	✅ MD5: Verified	File Hash protection is missing.
File size	202 kb.	206848 bytes.

Hashes:

MD5: 4a0e2443e10760e723146af892d68602 ✅
SHA-1: 26b559df817e83db7b716f8127f1eb0a5413222c
SHA-256: 5de7999816dc6e4b75c12d3600a64a9c4ac50f9945de9e1d1ba6151c1c521121
SHA-512: 93c1dc5a50c1442d1ae74b8e6c2b2ae85bb640779df59f8dffbd3bb789217d22bc5a61a788a48525cf17d24af689a108c6b2aabaedc67e7807428a1d4b44907c

✅ This file is compatible with 32-bit Windows and can run on ✅ 64-bit Windows (via the WOW64 subsystem).

What is iisutil.dll?

• Purpose: Microsoft IIS Utility Library.
• Function: Handles Internet Information Services (IIS).
• Role: Manages web server logging, caching, and configuration.
• Type: Dynamic Link Library (DLL) system file.
• Developer: Microsoft Corporation.

Standard File Location

• Primary Path: C:\Windows\System32\inetsrv\
• Backup Path: C:\Windows\System32\dllcache\ (on older Windows versions).
• 64-bit Path: C:\Windows\SysWOW64\inetsrv\ (for 32-bit compatibility on 64-bit systems).

How to Fix iisutil.dll Errors Without Downloading

1. Enable or Reinstall IIS Features

• Open Control Panel.
• Click Programs and Features.
• Select Turn Windows features on or off.
• Uncheck Internet Information Services.
• Click OK and restart your computer.
• Reopen the menu and recheck Internet Information Services.
• Click OK to restore missing IIS files.

2. Run SFC and DISM Scans

• Press Win + X.
• Select Terminal (Admin) or Command Prompt (Admin).
• Type sfc /scannow and press Enter.
• Wait for the system scan to finish.
• Type DISM /Online /Cleanup-Image /RestoreHealth and press Enter.
• Restart your device after completion.

3. Re-register the DLL File

• Open Command Prompt (Admin).
• Type regsvr32 %systemroot%\System32\inetsrv\iisutil.dll and press Enter.
• Click OK on the confirmation popup.

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?? To provide the exact steps for your situation, could you tell me:

• The exact error message or code you see?
• Your Windows operating system version?
• What action triggers the error?

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📊 Diagnostics Tool: Verify Your iisutil.dll File

Worried that the file on your PC has been modified by malware? Drop it into the form below. Our script will verify its file size, cryptographic hash (MD5/SHA-1), and check for a valid Microsoft digital signature.

Connected files:
msvcrt.dll
├── ntdll.dll
├── bcrypt.dll
├── USER32.dll
└── KERNEL32.dll
Other versions:
️ iisutil.dll 7.5.7601.17514 64-bit (x64) | ️ iisutil.dll other