iisutil.dll - Analyze and How to Fix Errors

⚠️ Important Notice: Meta Description: Discover information about iisutil.dll, its role in IIS management, and download links if needed. Manually replacing system libraries can brick future Windows updates or cause critical system failures.

Architecture:	64-bit (x64)	Compatible with only 64-bit Windows
Creation date	20.11.2010 15:01:37
File version	7.5.7601.17514
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	274.5 kb.	281088 bytes.

Hashes:

MD5: 0dcbba4c67b1d62155991bec7508708a ✅
SHA-1: 5687727b577c731450c155ea8506b60314eb4719
SHA-256: b2545d5ab737584b0499b8cb3ebfdf8358be394cd0ac23bd60870e3d87381498
SHA-512: 68b3872d2098decedd34736a3ede3b9da2c6adb0c1ef8eab0c036caa672d0510ccfef84ae7d568f09ff99d51c3c97822344228b836ce1b55ea7b843e647477c3

✅ This file is compatible with 64-bit Windows and ❌ will not work on a 32-bit operating system.

What is iisutil.dll?

• Description: Internet Information Services (IIS) Utility Library.
• Function: Handles core utility functions, logging, and memory management for Microsoft IIS web servers.
• Developer: Microsoft Corporation.
• Type: Dynamic Link Library (DLL) system file.

Standard File Location

• C:\Windows\System32\inetsrv\iisutil.dll
• Note: 64-bit systems may also have a copy in C:\Windows\SysWOW64\inetsrv\.

How to Fix iisutil.dll Errors Without Downloading

1. Re-register the DLL File

• Open Command Prompt as Administrator.
• Type regsvr32 %systemroot%\system32\inetsrv\iisutil.dll and press Enter.
• Restart your computer.

2. Run System File Checker (SFC)

• Open Command Prompt as Administrator.
• Type sfc /scannow and press Enter.
• Wait for the system to automatically replace missing or corrupted Windows files.

3. Run DISM Tool

• Keep the Command Prompt (Admin) open.
• Type DISM /Online /Cleanup-Image /RestoreHealth and press Enter.
• This repairs the underlying Windows system image using Windows Update.

4. Turn IIS Features Off and On

• Open the Windows Start menu, type Turn Windows features on or off, and press Enter.
• Locate Internet Information Services.
• Uncheck the box, click OK, and restart your PC.
• Reopen the menu, check the box again to reinstall IIS cleanly, and restart.

---

?? To help you find the exact solution, could you tell me:

• The exact error message you see on your screen?
• When does the error happen? (e.g., during Windows startup, launching an app, or starting IIS?)
• Your Windows version (e.g., Windows 10, 11, or Windows Server)?

---

📊 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
├── USER32.dll
└── KERNEL32.dll
Other versions:
️ iisutil.dll 7.5.7601.27664 32-bit (x86) | ️ iisutil.dll other