iwmssvc.dll - Analyze and How to Fix Errors

★★☆☆★ Verified File (27.08.2026)

⚠️ Important Notice: Troubleshoot and optimize your system with iwmssvc.dll errors solutions. 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	19.08.2019 18:11:18
File version	21.40.1.0
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	2.7 Mb.	2.7 Mb. bytes.

Hashes:

MD5: e8ad63519ee3520435d1b0a838246c01 ✅
SHA-1: caea5a9d8fc1d4d97e151351c082bdc291efce22
SHA-256: 51428468cbf7626305e3f4257e6e7a57d8584a96ecc805a26a103b8a0da6f012
SHA-512: 91f29d8dada53eafa09375ba611d983f3c19695c805a530e862fd89c3d102834777bea11e18cf00bb868c64032bc353a6c444c8260288997eb29e94e68515c84

Digital file signature `iwmssvc.dll` ✅

Publisher: Intel Corporation
Issuer: COMODO Code Signing CA 2
Encryption algorithm: SHA1
Time stamp: Aug 19 16:28:41 2019 GMT

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

File Information and Error Fixes for iwmssvc.dll

The file iwmssvc.dll is the Intel WLAN Extensibility Module, which is dynamically linked to the Intel PROSet/Wireless Software service. It provides proprietary extensions to the native Windows WLAN AutoConfig (WlanSvc) service to manage Intel Centrino and Intel wireless network adapters.

?? Standard File Location

On a standard Windows installation running an Intel wireless network adapter, the file is located inside the system directory:

C:\Windows\System32\iwmssvc.dll

??? How to Fix iwmssvc.dll Errors Without Downloading Anything

Errors like "iwmssvc.dll missing", "WLAN Extensibility Module has stopped", or system crashes related to this file are typically caused by corrupted system components or mismatched Wi-Fi drivers.

Follow these steps sequentially to repair the file internally:

1. Run System File Checker (SFC) and DISM

Windows can automatically repair or restore missing system files from its own built-in local image cache.

Press the Windows Key, type cmd, right-click on Command Prompt, and select Run as administrator.
Paste the following command and hit Enter to scan the OS health:
```
DISM.exe /Online /Cleanup-image /Restorehealth
```
Once completed, type the following command and hit Enter to replace missing or corrupted .dll files:
```
sfc /scannow
```
Restart your computer.

2. Re-register the DLL Module

If the file is physically present in your system but Windows is failing to recognize or communicate with it, you can forcefully re-register the library via the command line.

Open Command Prompt as Administrator.
Type the following command and press Enter:
```
regsvr32 /u iwmssvc.dll
```
Type the following command and press Enter to register it cleanly:
```
regsvr32 iwmssvc.dll
```
Restart your PC.

3. Reinstall Your Local Wireless Adapter Driver

Because iwmssvc.dll is deeply tied to your Intel wireless network driver, letting Windows reinstall the device clean from local cache will re-generate the module dependencies.

Right-click the Start Menu and choose Device Manager.
Double-click to expand Network adapters.
Right-click your Intel Wireless adapter (e.g., Intel Centrino Wireless or Intel Wi-Fi 6) and select Uninstall device.
Important: Leave the box that says "Attempt to remove the driver for this device" unchecked. Click Uninstall.
Click Action in the top menu bar of Device Manager and select Scan for hardware changes. Windows will look into its storage and reinstall your network adapter along with its local configuration.

4. Restart Windows WLAN Services

If the error breaks your internet connection, manually restarting the background network framework resolves service drops.

Press Windows Key + R, type services.msc, and hit Enter.
Locate WLAN AutoConfig in the list.
Right-click it and click Restart. (If it isn't running, right-click it, go to Properties, set the Startup type to Automatic, and click Start).

?? Need further help? Please tell me your Windows Operating System version (e.g., Windows 10 or 11) and the exact error text or code you are receiving so we can pinpoint your issue.

📊 Diagnostics Tool: Verify Your `iwmssvc.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.