comphelpmsc.dll - Analyze and How to Fix Errors

★★★★☆ Verified File (27.08.2026)

⚠️ Important Notice: Discover information about comphelpmsc.dll—its role, function, and troubleshooting tips for Windows systems. 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	08.10.2025 22:43:50
File version	4.1.0.500
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	1.1 Mb.	1.1 Mb. bytes.

Hashes:

MD5: 7a2db7bb7d80aa7f5e292d20e644ea37 ✅
SHA-1: 790dbe38561775f2506ae22ec10c028c922117df
SHA-256: 3e25010606597b22ea29a64b1f62cea724ba9ed203af428968fee39a9775861c
SHA-512: de924048479ce7bfc020403b5e5a95d36a21a4f79568921686e1538ab2f42841e17375db9d60aa76d6cfffb53bd62eccfdfb56f0a6741adb9357649b2bb08c1a

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

To fix the comphelpmsc.dll error without downloading any third-party files, use the built-in repair tools in Windows to replace corrupted or missing system elements.

1. Run the System File Checker (SFC)

The SFC utility automatically scans and repairs missing or damaged Windows system DLL files.

Type cmd into the Windows search bar.
Right-click Command Prompt and select Run as administrator.
Type sfc /scannow and press Enter.
Wait for the scan to hit 100% completion.
Restart your computer to apply the fixes.

2. Run the DISM Tool

If the SFC tool cannot find the file, the DISM tool fetches fresh system components from official Microsoft servers without requiring manual downloads.

Open Command Prompt as an administrator again.
Type DISM.exe /Online /Cleanup-image /Restorehealth and hit Enter.
Allow the verification process to finish completely.
Restart your PC and check if the error is gone.

3. Reinstall the Affected Application

If the error occurs only when opening a specific game or app, that software's installer contains the proper DLL file.

Open the Settings app by pressing Windows Key + I.
Navigate to Apps and click on Installed apps.
Locate the program causing the error.
Click the three dots and select Uninstall.
Reinstall the app using its original source or official installation media.

4. Use System Restore

You can roll your operating system back to a previous state before the file became corrupted.

Type Create a restore point in the Windows search bar and click it.
Click the System Restore button.
Choose a date before you started seeing the DLL error.
Follow the on-screen instructions to finish the restoration.

If you are still experiencing issues, could you tell me which program triggers this error or what specific actions cause the message to pop up?

📊 Diagnostics Tool: Verify Your `comphelpmsc.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:
sal3.dll
├── cppuhelper3MSC.dll
├── cppu3.dll
├── ucbhelper4MSC.dll
├── vos3MSC.dll
├── MSVCP90.dll
└── uwinapi.dll