fp4autl.dll - Analyze and How to Fix Errors

★★★★☆ Verified File (27.08.2026)

⚠️ Important Notice: Discover solutions and troubleshooting tips for fp4autl.dll errors. Improve system performance with expert advice. 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
File version	4.0.2.3216
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	0.6 Mb.	0.6 Mb. bytes.

Hashes:

MD5: 7210c3ea5b04bdea799495ad7e13591d ✅
SHA-1: f2a6d323296c2b4f1c394117611a00ec321d759d
SHA-256: 4713b1ae310313256f9698e3790c1f4152f2cb1b67209b586ba5d6fdfab3e424
SHA-512: ab50cd3362e8e61e38666f29eabbd915a83fca75f58c970c5a2c3ea298c795ffa8b2c39416583bb659c5f63fbf0334592c5acb8deacfe2d3d14815da73202321

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

File Description: fp4autl.dll

The fp4autl.dll file is a dynamic link library (DLL) associated with Microsoft FrontPage (specifically, the FrontPage Server Extensions).

Full Name: Microsoft FrontPage Server Extensions Client Utility Library
Function: It handles authoring utilities, administration tasks, and communication between the FrontPage client and the server extensions.

Standard File Location

On a standard Windows installation, this file is typically located in the common files directory for Microsoft Shared utilities:

C:\Program Files (x86)\Common Files\Microsoft Shared\Web Server Extensions\bin\ (on 64-bit systems)
C:\Program Files\Common Files\Microsoft Shared\Web Server Extensions\bin\ (on 32-bit systems)

How to Fix fp4autl.dll Errors (Without Downloading)

If you are experiencing crashes, missing file errors, or access violations related to fp4autl.dll, you can fix it safely using built-in Windows tools and native installers.

1. Re-register the DLL File

If the file exists but Windows cannot read it properly, re-registering it via the Command Prompt can resolve the issue.

Press the Windows Key, type cmd, right-click Command Prompt, and select Run as administrator.
Type the following command and press Enter:
```
regsvr32 /u fp4autl.dll
```
Type this command to re-register it and press Enter:
```
regsvr32 fp4autl.dll
```
Restart your computer.

2. Run System File Checker (SFC)

Windows has an internal tool to repair corrupted or missing system-linked files automatically.

Open Command Prompt as an administrator.
Type the following command and press Enter:
```
sfc /scannow
```
Wait for the scan to hit 100%. If Windows finds corruption, it will repair the file using cached native copies.

3. Repair the Host Application

Because fp4autl.dll is part of Microsoft Office / FrontPage components, running an Office repair will restore the genuine file.

Press Win + R, type appwiz.cpl, and press Enter to open Programs and Features.
Find Microsoft Office (or Microsoft FrontPage / Expression Web) in the list.
Click on it and select Change (or Modify).
Choose the Repair option (Quick Repair or Online Repair) and follow the prompts.

4. Restore from the Recycle Bin

If the error started happening after a recent cleanup, the file might have been accidentally deleted.

Open your Recycle Bin.
Search for fp4autl.dll in the top-right search bar.
If found, right-click the file and click Restore.

📊 Diagnostics Tool: Verify Your `fp4autl.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:
MSVCRT.dll
├── MSVCIRT.dll
├── KERNEL32.dll
├── USER32.dll
├── GDI32.dll
└── ADVAPI32.dll