iwmsprov.dll - Analyze and How to Fix Errors
β β β β β Verified File (27.08.2026)β οΈ Important Notice: Discover information about
iwmsprov.dll, its function, and common issues in brief descriptions. 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 18:07:01 | |
| File version | 21.40.1.0 | |
| Antivirus scan | β Clean | No viruses detected. |
| Digital signature | β Have signed | File have signature, it is original file. |
| Hash Integrity | β MD5: Verified | File Hash protection is missing. |
| File size | 91.6 kb. | 93752 bytes. |
Hashes:
MD5: d428a5d61bed5b31a1fda384f051d4e5 βSHA-1: 42acc730a99667461127dd70372056ca584d3f00
SHA-256: 179045142d7c58791fe9aff9b4a39f35ae6c8546c59c25b691658c1de11d5992
SHA-512: 1700223ccf51d17465bf99e145fa2154b7b99d911f9d6c29157589b6a756c5f1c33ad73248831a0e5d68666edb153d77a28c6e3bced625546b08e9151083b35c
Digital file signature iwmsprov.dll β
Issuer: COMODO Code Signing CA 2
Encryption algorithm: SHA1
Time stamp: Aug 19 16:27:48 2019 GMT
β This file is compatible with 64-bit Windows and β will not work on a 32-bit operating system.
File Description: iwmsprov.dll
The file iwmsprov.dll is a legitimate Dynamic Link Library component of Microsoft Windows. It is known as the Windows Media Services WMS Provider module. Its primary function is to handle media streaming, provider services, and content delivery management within Windows Media Services or related Media Player backend frameworks.
Standard File Location
On a standard Windows system, this file is located in the system directory:
C:\Windows\System32\
Note: On 64-bit systems, a 32-bit version of the file may also reside in C:\Windows\SysWOW64\.
How to Fix iwmsprov.dll Errors (Without Downloading)
If you are experiencing crashes, "file not found," or missing entry point errors related to this file, you can fix it using built-in Windows tools. Do not download dll files from third-party websites, as they often contain malware.
1. Run the System File Checker (SFC)
This utility scans all protected system files and replaces corrupted or missing files with a cached copy from the system.
- Press Windows Key + X and select Terminal (Admin) or Command Prompt (Admin).
- Type
sfc /scannowand press Enter. - Wait for the scan to hit 100% and restart your computer.
2. Run the DISM Tool
If the SFC tool cannot fix the file because the local cached copy is also damaged, use Deployment Image Servicing and Management (DISM) to repair the system image.
- Open Command Prompt (Admin).
- Type
DISM /Online /Cleanup-Image /RestoreHealthand press Enter. - This tool will connect to Windows Update to download clean, official versions of broken system files.
- Once finished, run the
sfc /scannowcommand one more time.
3. Re-register the DLL File
If the file exists but Windows is failing to recognize or communicate with it, you can manually re-register it in the Windows Registry.
- Open Command Prompt (Admin).
- Type
regsvr32 /u iwmsprov.dlland press Enter (this unregisters the file). - Type
regsvr32 iwmsprov.dlland press Enter (this re-registers the file). - Restart your system.
4. Turn Windows Media Features Off and On
Since this file belongs to Windows Media components, cycling the feature can force Windows to reinstall clean versions of its files.
- Press Windows Key + R, type
optionalfeatures, and press Enter. - Scroll down to find Media Features (or Windows Media Player).
- Uncheck the box, click OK, and restart your computer.
- Open the same window again, check the box to re-enable it, and restart once more.
π Diagnostics Tool: Verify Your iwmsprov.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.
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