urlauthz.dll - Analyze and How to Fix Errors

⚠️ Important Notice: Manage URL authorization rules for web applications securely. 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	14.07.2009 02:11:26
File version	7.5.7600.16385
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	24 kb.	24576 bytes.

Hashes:

MD5: 474a3ddc4c8cd6412bd3de06788644e0 ✅
SHA-1: fc95ba0f5d8077ba30b88e1d61b9fdbdd21a4f45
SHA-256: 02789e75998cb37e62fbf031357bee5f523d4757bb2137071426c2b7246ac5d2
SHA-512: e9d017c5df1d368ef779a4b09ba8545a3c90663dc137c59a1f718ba7f83cf6b07a0203d56af23f18f3a87bd87811473496513ae78fb10f4b8a29bb9bcc0cb338

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

Direct Answer

The urlauthz.dll file is a native Windows system component responsible for URL authorization permissions within Internet Information Services (IIS). You can fix errors related to this file without downloading anything by using the built-in Windows System File Checker (SFC) tool.

Description and Standard Location

• File Description: URL Authorization Extension DLL (part of Microsoft IIS)
• Standard Location: C:\Windows\System32\
• 64-bit Systems Copy: C:\Windows\SysWOW64\ (for 32-bit compatibility)

How to Fix urlauthz.dll Errors Without Downloading

Follow these three built-in Windows methods to repair or restore the file safely.

Method 1: Run System File Checker (SFC)

This tool scans all protected system files and replaces corrupted ones with a cached copy.

1. Press the Windows Key.
2. Type cmd.
3. Right-click Command Prompt.
4. Select Run as administrator.
5. Type sfc /scannow.
6. Press Enter.
7. Restart your computer.

Method 2: Run DISM Command

If SFC fails to fix the file, the Deployment Image Servicing and Management (DISM) tool will fetch clean files from Windows Update.

1. Open Command Prompt as administrator.
2. Type DISM /Online /Cleanup-Image /RestoreHealth.
3. Press Enter.
4. Wait for completion.
5. Restart your computer.

Method 3: Re-enable IIS Features

Because this file belongs to Internet Information Services, toggling the feature off and on refreshes its components.

1. Press Win + R.
2. Type optionalfeatures.
3. Press Enter.
4. Locate Internet Information Services.
5. Uncheck the box.
6. Click OK and restart.
7. Reopen the menu.
8. Check the box again.
9. Click OK to reinstall.

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📊 Diagnostics Tool: Verify Your urlauthz.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
├── KERNEL32.dll
├── IISUTIL.dll
├── ADVAPI32.dll
└── url authorization.dll
Other versions:
️ urlauthz.dll 7.5.7600.16385 64-bit (x64) | ️ urlauthz.dll other