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FXSTIFF.dll

Updated: Files Available: 70
Verified Metadata AI Analysis x86-64 (64 bit) x86 (32 bit)

Download and install FXSTIFF.dll to fix missing or corrupted DLL errors.

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DLL Overview

Last Updated
Nov 20th, 2025
Filename
FXSTIFF.dll
Company
Microsoft Corporation
Product
Microsoft® Windows® Operating System
Description
Microsoft Fax TIFF library
Architecture
x86-64 (64 bit) x86 (32 bit)
Metadata Consensus
69/70 Files 98.6%
Higher percentages indicate stronger agreement across versions. View available versions or browse repository metadata to compare differences between variants.

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About FXSTIFF.dll

FXSTIFF.dll is a DLL file (Dynamic Link Library) used by Windows programs to share code and resources. It allows multiple applications to use the same functions, improving performance and reducing redundancy.

AI-assisted overview · Dec 11, 2025

Overview

What Is FXSTIFF.dll?

FXSTIFF.dll is a Windows system component developed by Microsoft Corporation and included in the Microsoft® Windows® Operating System. Its description identifies it as the Microsoft Fax TIFF library, meaning it supports TIFF image handling for the Windows Fax Service.

  • Filename: FXSTIFF.dll
  • Company: Microsoft Corporation
  • Product: Microsoft® Windows® Operating System
  • Description: Microsoft Fax TIFF library

This DLL is used by components of the Windows Fax service to process, convert, and render TIFF images associated with fax transmission and reception.

What FXSTIFF.dll Does

The Windows Fax Service uses FXSTIFF.dll to handle fax image data in TIFF format. Typical functionality includes:

  • Reading and writing TIFF images for fax documents
  • Converting raw fax data into TIFF format
  • Processing TIFF metadata used by fax components
  • Supporting image operations like rendering or compression

Any Windows component that handles fax TIFF files may rely on this DLL.

Where FXSTIFF.dll Is Located

FXSTIFF.dll is installed with Windows and stored in protected system directories, such as:

C:/Windows/System32/
C:/Windows/SysWOW64/   (for 32-bit components on 64-bit Windows)
C:/Windows/WinSxS/<fax-component-folder>/

Windows Update and servicing tools maintain this file automatically.

Common Error Messages

If FXSTIFF.dll is missing or corrupted, Windows may display errors such as:

FXSTIFF.dll is missing.

Error loading FXSTIFF.dll.

The fax service cannot process TIFF data.

Windows Fax and Scan may fail to open or create fax documents when this DLL is not functioning properly.

How to Fix FXSTIFF.dll Issues

Since FXSTIFF.dll is a built-in Windows component, repair should be performed using Windows system tools.

1. Run DISM and SFC to repair system files

Open an elevated Command Prompt:

Run DISM to update SFC packages 

DISM /Online /Cleanup-Image /RestoreHealth

Then run SFC 

sfc /scannow

These tools restore missing or corrupted system DLLs, including fax-related components.

2. Ensure the Windows Fax Service is installed or enabled

On some editions of Windows, the Fax service is optional.

  • Enable it via Windows Features if needed.
  • Reinstalling the fax service can restore library files.

3. Install any pending Windows Updates

Fax-related components are updated through normal Windows servicing.

4. Avoid manual replacement

Manually copying system DLLs may cause version mismatches and service failures.

Manual Installation Notes

If manual restoration is absolutely required:

  • Use a file that matches your exact Windows version and architecture.
  • Place it only in Windows-managed system directories.

DISM and SFC remain the preferred repair methods.

Summary

FXSTIFF.dll is the Microsoft Fax TIFF library used by the Windows Fax Service to read, write, and process TIFF fax documents. It is a core Windows system file, and issues involving this DLL are typically resolved through DISM/SFC repairs, enabling the Fax service, or applying Windows Updates.

File information is supported by Human Assisted Artificial Intelligence and should be used as a helpful tool. However, it is important to keep in mind that this information may not be up-to-date or entirely accurate.

Troubleshooting DLL Errors

Most errors involving FXSTIFF.dll occur because the DLL is missing, corrupted, or outdated. In many cases, reinstalling the related application or replacing the DLL resolves the issue. The steps below cover the most common and reliable ways to fix these errors.

Windows DLL Error Examples

This application has failed to start because FXSTIFF.dll was not found. Re-installing the application may fix this problem.
FXSTIFF.dll Not Found.

Fixes and Solutions

The first step in resolving DLL errors is to completely uninstall the affected software and reinstall its latest version. We know this does not always solve the problem, which is why DLLme exists. If reinstalling the application does not help, or if you are unsure which app is causing the error, follow the steps below. These are the most common solutions for fixing FXSTIFF.dll errors.

  • Repair Windows: Make sure Windows is fully updated, then open Windows Terminal or PowerShell as an administrator (search for “PowerShell” in the Start menu, right-click it, and choose “Run as administrator”). This allows you to repair the Windows component store and run the System File Checker (SFC).

    Repair the Windows component store so SFC can pull clean files:

    DISM /Online /Cleanup-Image /RestoreHealth

    Scan all protected system files and automatically repair problems:

    sfc /scannow
  • Uninstall & Reinstall: On this DLL page, check the Company/Product section to identify the related app, then fully uninstall it. If you plan to continue using it, reinstall the latest version. Be sure to save or back up any important data before uninstalling. Windows or antivirus software may sometimes quarantine DLL files, especially if the DLL is unfamiliar or appears suspicious. Check your antivirus quarantine or logs to determine if this is the cause of your issue.
  • Download the DLL: Download the latest 32-bit or 64-bit version of the DLL directly from our repository using the download button above. Most users will need the 64-bit version, but if you are unsure, or if a 64-bit version is not available, you can install both the 32-bit and 64-bit DLLs. DLLme verifies DLLs that come from our admins, partners, and trusted affiliates. User-uploaded files may be verified later if a trusted source is confirmed.
  • Register the DLL: Most DLL files do not need registration, but some DLLs are COM components and must be registered to work correctly. If registration is required, open Windows Terminal or PowerShell as an administrator.

    Register the DLL (you can also drag the DLL file into the window to automatically fill in its full path): 

    regsvr32 "C:\path\to\FXSTIFF.dll"

    If you are registering a 32-bit DLL on 64-bit Windows, use the 32-bit RegSvr32: 

    C:\Windows\SysWOW64\regsvr32 "C:\path\to\FXSTIFF.dll"

    Or open Windows Terminal/PowerShell in the DLL’s folder and run: 

    regsvr32 FXSTIFF.dll

How to Install FXSTIFF.dll

To install FXSTIFF.dll, place the DLL file in the appropriate Windows system folder or in the same folder as the application’s .exe file. If you are not sure which version (32-bit or 64-bit) to use, you can safely install both.

On 64-bit versions of Windows, place 64-bit DLL files in:

C:\Windows\System32\FXSTIFF.dll

Place 32-bit DLL files in:

C:\Windows\SysWOW64\FXSTIFF.dll

Or place the DLL file next to the application’s .exe:

C:\path\to\exe\FXSTIFF.dll

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