ucbhelper4msc.dll - Analyze and How to Fix Errors

★★★★☆ Verified File (27.08.2026)

⚠️ Important Notice: dll for Microsoft Office compatibility and enhanced functionality. Essential for MS Word, Excel, and PowerPoint users. 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 22:43:47
File version	4.1.9816.500
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	379.5 kb.	388608 bytes.

Hashes:

MD5: 847c104f46bd8bf1c35c51017bb4a563 ✅
SHA-1: deaae3c9f0b784c1adfb0d7fc9a9d896e0b0acec
SHA-256: 3122b9d054660b00524647d466a356c9b9133fb3c9db1a77612cf65cdc1534f1
SHA-512: 2ec621631ec85b5e79c105d19ad2e6da31a90e6771d0f891fcfd3f57e067fd95f09f543ae1579bbab98d8f5e33dc82f22237d9d748d32ea600f831d5bd02edf1

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

To fix the ucbhelper4msc.dll error without downloading files from risky third-party websites, you should repair the parent application (typically Apache OpenOffice or LibreOffice) or use built-in Windows system tools.

Here is exactly how to fix it safely.

1. Repair Apache OpenOffice / LibreOffice

The ucbhelper4msc.dll file is a core component belonging to the Universal Content Broker (UCB) helper library used by OpenOffice or LibreOffice. If it is missing or corrupted, running a built-in repair will restore it.

Press Windows Key + R, type appwiz.cpl, and press Enter.
Locate Apache OpenOffice or LibreOffice in the list.
Right-click the program and select Change or Repair.
Choose the Repair option in the wizard and complete the process.
Restart your computer.

2. Reinstall the Program

If the repair wizard is unavailable or fails, a fresh installation will recreate the missing DLL safely.

Open Programs and Features (appwiz.cpl) again.
Right-click OpenOffice / LibreOffice and select Uninstall.
Restart your PC to clear cached files.
Run the original installer file already present on your system to reinstall it.

3. Run Windows System File Checker (SFC)

If the application relies on underlying Windows subsystems that have become corrupted, the System File Checker will automatically fix them.

Press the Windows Key, type cmd, right-click Command Prompt, and select Run as administrator.
Type the following command exactly and press Enter:
```
sfc /scannow
```
Wait for the scan to hit 100%. If Windows finds corruption, it will fix it using local system backups without requiring any downloads.

4. Restore the File from the Recycle Bin

Sometimes DLL errors occur simply because the file was accidentally deleted or moved by the user.

Open your Recycle Bin from the Desktop.
Type ucbhelper4msc.dll into the top-right search bar.
If found, right-click the file and select Restore.

If you are still experiencing issues, please let me know which specific program throws this error when launched, and your current Windows version, so I can provide customized steps!

📊 Diagnostics Tool: Verify Your `ucbhelper4msc.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:
cppuhelper3MSC.dll
├── cppu3.dll
├── salhelper3MSC.dll
├── sal3.dll
├── MSVCR90.dll
├── MSVCP90.dll
└── KERNEL32.dll