customuiresource.dll - Analyze and How to Fix Errors
β β βββ Verified File (27.08.2026)β οΈ Important Notice: CustomUIResource DLL Download & Information | Essential UI Elements Management 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 18:05:24 | |
| 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 | 52.6 kb. | 53816 bytes. |
Hashes:
MD5: 9a43c0909afd1a465ebae61a54228d62 βSHA-1: e2c61149805c06baf1b4676806eb92440e0d03d7
SHA-256: 87385a1427a9ca23585844a5ef4cf03517279e83502eaceccf0c7decd6b35c50
SHA-512: b53e8e99de543a58913565b3aff19e41480397aa6de451e2cea5b8478ee345703378eccbdc2df409e5f263d6b7cc4e08ca02aa0f579496a8da04721677487555
Digital file signature customuiresource.dll β
Issuer: COMODO Code Signing CA 2
Encryption algorithm: SHA1
Time stamp: Aug 19 16:27:21 2019 GMT
β This file is compatible with 64-bit Windows and β will not work on a 32-bit operating system.
What is customuiresource.dll?
The customuiresource.dll file is a Dynamic Link Library file associated with Microsoft software, most commonly linked to Microsoft Office (particularly Excel and SharePoint) or specific corporate software packages that utilize customized user interface elements. It contains code and resources used to render custom menus, toolbars, and visual layouts.
Standard File Location
The file is typically located within the application directories of Microsoft Office or specific program folders, rather than the global system directory. Common paths include:
C:\Program Files\Microsoft Office\root\Office16\(orOffice15depending on the version)C:\Program Files (x86)\Microsoft Office\Office16\C:\Users\<Your-Username>\AppData\Local\Apps\(for specific user-installed custom add-ins)
How to Fix customuiresource.dll Errors Without Downloading
Errors related to this file usually happen because the file is corrupted, misplaced, or an associated application update failed. You can fix this safely using built-in system tools without downloading anything from third-party websites.
1. Repair Microsoft Office
Since this file is deeply tied to Office components, running a built-in repair will restore the missing or corrupted DLL.
- Press Windows Key + R, type
appwiz.cpl, and press Enter. - Find Microsoft Office (or Microsoft 365) in the list.
- Right-click it and select Change.
- Choose Quick Repair and click Repair. If the issue persists, repeat and choose Online Repair.
2. Run System File Checker (SFC)
If the file is part of a system-managed layout, Windows can repair it automatically.
- Type
cmdin the Windows search bar. - Right-click Command Prompt and select Run as administrator.
- Type
sfc /scannowand press Enter. - Wait for the scan to finish and restart your computer.
3. Perform a Clean Boot to Find Conflicts
Third-party startup programs or custom Excel add-ins might be trying to load a broken resource path.
- Press Windows Key + R, type
msconfig, and press Enter. - Go to the Services tab, check Hide all Microsoft services, and click Disable all.
- Go to the Startup tab and click Open Task Manager.
- Disable all startup items, restart your PC, and see if the error disappears.
4. Re-register the DLL (If present but failing)
If the file exists on your system but throws errors, registering it again can fix the communication link.
- Open Command Prompt as an administrator.
- Type
regsvr32 customuiresource.dlland press Enter. (Note: If it throws a path error, you will need to navigate to the specific Office folder using thecdcommand first).
If you would like to pinpoint the exact cause, let me know:
- What specific error message or code are you seeing?
- Which application are you trying to open when the error pops up?
- Have you recently installed any Microsoft Office updates or third-party add-ins?
π Diagnostics Tool: Verify Your customuiresource.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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