What Is fxsui.dll?

fxsui-dll
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Introduction to FXSUI.DLL

FXSUI.DLL is a Dynamic Link Library (DLL) file developed by Microsoft Corporation and is a component of the Microsoft Windows Operating System. Its primary function is as the Microsoft Fax Printer Driver UI, which is essential for fax-related tasks within Windows.

Is FXSUI.DLL Safe?

By default, FXSUI.DLL is a safe and legitimate file critical to the Windows OS for handling fax print jobs. However, it is important to ensure that the DLL file in question is located in the correct directory (typically ‘C:\Windows\system32\spool\DRIVERS\x64\3\’ for 64-bit systems) to verify its legitimacy.

Could FXSUI.DLL Be a Virus or Malware?

While the original FXSUI.DLL file provided by Microsoft is not a virus or malware, any file on a computer can potentially be replaced or masqueraded by malicious files with the same name. If this DLL file exhibits unusual behavior, originates from an unofficial source, or is found outside the usual directory, it may warrant a virus scan.

Common Issues with FXSUI.DLL

Issues with FXSUI.DLL can lead to different error messages. These errors might state that the file is missing, corrupted, not designed to run on Windows, or has experienced an error. Problems with FXSUI.DLL may be related to a faulty application, deletion or displacement of the file, corruption by malware, or a damaged Windows registry.

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Another specific error identified by users is “print spooler failed to load a plug-in module FXSUI.DLL – error code 0x5” when installing a shared printer, which signifies issues related to print spooling functions.

How to Fix Issues with FXSUI.DLL

If you’re encountering issues with FXSUI.DLL, here are some steps to resolve them:

1. Run System File Checker (SFC):
Open Command Prompt with elevated privileges and enter `sfc /scannow`. This command scans for corrupted system files and repairs them.

2. Use DISM (Deployment Image Service and Management Tool):
Running `DISM.exe /Online /Cleanup-Image /RestoreHealth` can help fix Windows corruption errors.

3. Scan for Malware:
Perform thorough antivirus scans, both online and offline, to ensure that no malware is masquerading as the FXSUI.DLL file.

4. Manually Replace the File:
If you have another working computer with the same version of Windows, you can copy the FXSUI.DLL file from there and replace the faulty one on your system after taking proper precautions.

5. Reinstall Printer Drivers:
If the issue is related to printing, uninstall third-party printer drivers, and reinstall the latest versions from the manufacturer.

6. Check for Windows Updates:
Ensure your system is up to date, as some DLL errors may be fixed with the latest Windows updates.

7. Disable Printer Sharing in Remote Desktop Connections:
In some cases, disabling printer sharing in MSTSC connection settings can help resolve DLL-related issues.

8. Perform a System Restore:
If recent changes to the system caused the error, you could restore your system to a previous state when everything was working fine.

It is generally inadvisable to download DLL files from third-party websites due to the potential risks. While resources like DLL-Files.com exist and offer the ability to download various versions of DLL files, always proceed with caution and utilize such services at your own risk.

If you continue to experience problems, seeking help from Microsoft’s community forums or other reputable tech support channels is recommended. Technical support may provide personalized guidance based on the specifics of your issue.

Before making any changes to your system files or registry, it’s always prudent to back up important data to prevent any accidental loss during troubleshooting.

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