oledlg.dll - Analyze and How to Fix Errors

★★★★☆ Verified File (27.08.2026)

⚠️ Important Notice: Meta Description: Discover information about oledlg.dll, its purpose, and related troubleshooting tips. Manually replacing system libraries can brick future Windows updates or cause critical system failures.

Architecture:	other	️ Not detected
Antivirus scan	✅ Clean	No viruses detected.
Digital signature	🟡 Not signed	Signature missing. The file may have been modified.
Hash Integrity	ℹ️ Unverified	File Hash protection is missing.
File size	3.1 kb.	3171 bytes.

Hashes:

MD5: c9fae9fc52ec4237923eb5cbad1e09fd
SHA-1: 649137f87070334574f1fb58d0e7a2af73ae3760
SHA-256: f4ad2e6e6dfe1c0d736410f20d6ef8d8581473fb85fd651ed3b22e084468e5a5
SHA-512: 6bec4e54bcf5a908c5f7138f5e0ed58ccf3e39b216c509b4e00b8f98f092f48a25ef48b28ec4897153bad98339fba74fbfda4d193388ad651397dbc130c5bfff

oledlg.dll File Details

Description: oledlg.dll (Microsoft OLE 2.0 User Interface Support) is an essential Microsoft Windows system file. It handles Object Linking and Embedding (OLE) functions, allowing different applications to exchange, embed, and share objects or data UI components seamlessly.
Standard File Locations:
- For 64-bit systems (64-bit files): C:\Windows\System32
- For 64-bit systems (32-bit files for backward compatibility): C:\Windows\SysWOW64
- For 32-bit systems: C:\Windows\System32

How to Fix oledlg.dll Errors Without Downloading Anything

Downloading .dll files from unofficial third-party websites poses a major security risk. You can resolve the error using built-in Windows features and commands.

1. Run the System File Checker (SFC)

Windows has an internal recovery mechanism that automatically replaces missing or corrupted system files from a secure local cache.

Press the Windows Key, type cmd, right-click Command Prompt, and select Run as administrator.
Type the following command and press Enter:
```
sfc /scannow
```
Wait for the validation check to reach 100%, then restart your computer.

2. Run the DISM Tool

If the local cache files are also corrupted, use the Deployment Image Servicing and Management tool to repair the system image.

Open Command Prompt as an administrator.

Execute this command:

DISM /Online /Cleanup-Image /RestoreHealth

Once completed, run the sfc /scannow command again to ensure oledlg.dll is fully restored.

3. Re-register the DLL File

If the file is present but the operating system fails to read it properly, you can manually re-register it in the Windows Registry.

Open Command Prompt as an administrator.
Type the following command to unregister the file and press Enter:
```
regsvr32 /u oledlg.dll
```
Type this command to register it back into the system and press Enter:
```
regsvr32 oledlg.dll
```

4. Check the Antivirus Quarantine

Aggressive security software sometimes flags system files as false positives and moves them to quarantine.

Open your active Antivirus software or Windows Security.
Navigate to Protection History or the Quarantine section.
Look for oledlg.dll. If found, click Restore.

5. Reinstall the Affected Software

If the error only pops up when opening a specific app (e.g., an eBook reader or game), the application's configuration might be broken.

Press Win + R, type appwiz.cpl, and hit Enter.
Select the problematic application and click Uninstall.
Run the installer again to properly restore local application configurations.

If you encountered this error during a specific Windows update or while installing an application, please share those details so I can provide a more tailored troubleshooting path!

📊 Diagnostics Tool: Verify Your `oledlg.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.

Other versions:
️ oledlg.dll 10.0.19041.5794 32-bit (x86) | ️ oledlg.dll 10.0.19041.5794 64-bit (x64)
Similar files:
️oledlg.dll.mui