kofmsp.dll is a core imaging and document processing module used across multiple Kofax products. Its primary responsibilities include:
The "MSP" in the name often relates to Microsoft Print or Memory Stream Processing within Kofax’s internal architecture, but documentation confirms that kofmsp.dll is an imaging service provider component.
If you have been scrolling through your Windows Task Manager, analyzing a crash dump, or digging through the System32 folder, you might have stumbled upon a file named kofmsp.dll. At first glance, its name looks cryptic—somewhere between a legitimate system driver and a piece of malware.
Is kofmsp.dll a critical Windows component, a harmless printer driver, or a disguised Trojan? This comprehensive article breaks down everything you need to know: its origin, technical function, common errors, and step-by-step troubleshooting.
kofmsp.dll depends on several other Kofax and system libraries:
| Dependency | Purpose |
|------------|---------|
| kfx.dll | Core Kofax imaging foundation |
| kofcx.dll | Kofax common utilities |
| kofccl.dll | CCL (Common Control Library) |
| twain_32.dll / twaindsm.dll | TWAIN data source management |
| wiatwain.dll | WIA-to-TWAIN bridge (older systems) |
| msvcp140.dll, vcruntime140.dll | Visual C++ 2015-2022 redistributables |
| gdi32.dll, user32.dll, ole32.dll | Standard Windows APIs for graphics and COM |
If you want, I can:
kofmsp.dll (Kerio Outlook Connector Message Service Provider) is a critical Dynamic Link Library file used by the Kerio Outlook Connector (Offline Edition), commonly known as KOFF.
If you are seeing errors related to this file, it usually means your Outlook is having trouble talking to your Kerio Connect mail server. Here is a deep dive into what this file does, why it fails, and how to fix it. What is kofmsp.dll?
In the world of Microsoft Outlook, "Message Service Providers" (MSPs) are the translators that allow Outlook to communicate with non-Microsoft mail servers. While Outlook natively speaks "Exchange," it needs a plugin to handle Kerio Connect’s unique synchronization protocol.
The kofmsp.dll file is the core engine of that plugin. It manages:
MAPI Integration: It plugs directly into the Messaging Application Programming Interface (MAPI) to make Kerio folders look and act like native Outlook folders.
Offline Sync: It handles the local caching of your emails, allowing you to read and draft messages even when you aren't connected to the internet.
Bi-directional Sync: It ensures that when you delete an email in Outlook, it’s deleted on the server (and your phone), and vice versa. Common Error Messages
When this DLL file is missing, corrupted, or blocked, Outlook will often refuse to open. You might see errors like:
"Cannot open your default e-mail folders. MAPI was unable to load the information service KOFMSP.DLL."
"The set of folders cannot be opened. An unexpected error has occurred." "KOFF failed to register with Error 1904." Why Does It Break? There are three main culprits behind kofmsp.dll failures:
Windows Updates: Major Windows updates (especially those affecting the .NET Framework or core system libraries) can sometimes "un-register" the DLL or change permissions in the folder where it lives.
Antivirus Interference: Because the DLL acts as a "middleman" for your data, some overzealous antivirus programs flag its behavior as suspicious and quarantine the file.
Multiple Outlook Versions: Having pieces of old Office installations (like an old Office 2013 trial alongside Office 2019) can cause "MAPI conflicts," where Outlook tries to load the wrong version of the connector. How to Fix kofmsp.dll Errors 1. The "Clean" Reinstall (Most Effective)
The most reliable fix is to completely remove the connector and let the Kerio server provide a fresh copy. Close Outlook and all GFI/Kerio processes. kofmsp.dll
Uninstall Kerio Outlook Connector via the Windows Control Panel.
Navigate to your Kerio Webmail URL (e.g., https://yourcompany.com).
Look for the "Integration with Windows" or "Download Tools" link on the login page. Download and run the installer as an Administrator. 2. Clear the KOFF Cache
Sometimes the DLL is fine, but the data it's trying to read is corrupted.
Go to %LOCALAPPDATA%\Kerio\Outlook Connector and rename or delete the folder associated with your profile. When you restart Outlook, the connector will rebuild the local database from the server. 3. Register the DLL Manually
If the file exists but Windows "forgot" it's there, you can force-register it: Open the Command Prompt as an Administrator.
Type regsvr32 "C:\Program Files (x86)\Kerio\Outlook Connector\kofmsp.dll" (adjust the path if yours is different) and hit Enter. Technical Compatibility Note
If you are still running Windows XP, be aware that modern versions of the Kerio Outlook Connector are no longer supported. If you encounter kofmsp.dll errors on XP, the official recommendation from GFI Support is to upgrade your OS to at least Windows 7 or higher.
Are you currently seeing a specific error code (like 0x800...) alongside the DLL warning? Reinstalling Kerio Outlook Connector - KerioConnect - GFI
The infamous kofmsp.dll!
For those who may not know, kofmsp.dll is a Dynamic Link Library (DLL) file that has been associated with a series of malware and viruses over the years. Here's a comprehensive story about this notorious file:
What is kofmsp.dll?
kofmsp.dll is a DLL file that was originally designed to be a legitimate component of the Microsoft Office software, specifically the Microsoft Office XP (2002) and Microsoft Office 2003 versions. The file is supposed to provide functionality for the Microsoft Office suite, particularly for the Korean language version.
The malware connection
However, in the early 2000s, malware authors began to exploit the kofmsp.dll file by creating malicious versions of it. These fake DLLs were designed to masquerade as the legitimate file, allowing malware to infect systems and evade detection.
The malware often spread through infected email attachments, pirated software, or exploited vulnerabilities in Windows and Office. Once installed, the malware would attempt to:
The infamous "KOFMsp.dll" virus
In 2003, a particularly nasty virus emerged, which became known as the "KOFMsp.dll" virus. This malware would infect Windows systems, particularly those with Korean language packs installed. The virus would:
The virus spread rapidly, causing significant disruptions to computer systems worldwide.
Removal and mitigation
To combat the malware, Microsoft released several security updates and patches to address the vulnerabilities exploited by the virus. Additionally, antivirus software vendors developed detection and removal tools to help eliminate the malware.
Users were advised to:
Legacy and continued threats
Although the original "KOFMsp.dll" virus was largely neutralized, the threat has continued to evolve. Over the years, new malware variants have emerged, often using similar techniques to evade detection.
In recent years, kofmsp.dll has been associated with various threats, including:
Conclusion
The story of kofmsp.dll serves as a reminder of the ongoing cat-and-mouse game between cybersecurity threats and defenders. While the original virus was largely contained, the threat landscape continues to evolve, and users must remain vigilant to stay protected.
To stay safe, it's essential to:
By being aware of the potential threats and taking proactive measures, you can help protect your digital world from malware and other online threats.
What is kofmsp.dll?
"kofmsp.dll" is a Dynamic Link Library (DLL) file that is associated with the Microsoft Office suite, specifically with the Microsoft Office XP and Office 2003 versions. The file is also known as the "Microsoft Office XP/2003 MSP (Microsoft Software Protection) DLL".
Functionality
The "kofmsp.dll" file is responsible for providing software protection and licensing functionality to Microsoft Office applications. It helps to verify the authenticity and validity of the Office software, ensuring that it is genuine and properly licensed.
Common Issues
Here are some common issues that may occur with the "kofmsp.dll" file:
How to fix issues with kofmsp.dll
Here are some steps to resolve common issues with the "kofmsp.dll" file:
How to remove kofmsp.dll
If you no longer need Microsoft Office or want to remove the file, you can try the following:
Precautions
Before making any changes to the "kofmsp.dll" file or Microsoft Office installation:
Conclusion
The "kofmsp.dll" file is an essential component of Microsoft Office XP and Office 2003, providing software protection and licensing functionality. While issues with the file can occur, they can usually be resolved by re-registering the file, updating Microsoft Office, or running a virus scan. If you're no longer using Microsoft Office, you can safely remove the file by uninstalling the software and deleting the file. Always exercise caution when making changes to system files and software installations.
If you've encountered the error message "MAPI was unable to load the information service KOFMSP.DLL," you aren't alone. This specific dynamic link library (DLL) is a critical component for users of the Kerio Outlook Connector (KOFF), a tool that allows Microsoft Outlook to sync with a Kerio Connect mail server.
When this file goes missing, becomes corrupted, or is blocked by system updates, Outlook typically fails to open, leaving you with a "set of folders cannot be opened" warning. What is KOFMSP.DLL?
The kofmsp.dll is a "Message Service Provider" file. Its primary job is to act as a bridge between your local Microsoft Outlook installation and the Kerio Connect server. It allows for offline synchronization, meaning you can manage your emails even without an active internet connection, and then sync them once you're back online.
Default File Path: C:\Program Files (x86)\Kerio\Outlook Connector (Offline Edition)\kofmsp.dll Primary Application: Kerio Outlook Connector (KOFF) Common Causes for the Error
kofmsp.dll is a Dynamic Link Library file associated with the Kerio Connect messaging and collaboration server. It serves as a MAPI (Messaging Application Programming Interface) service provider that allows Microsoft Outlook to communicate with Kerio Connect accounts.
Common Error: "MAPI was unable to load the information service KOFMSP.DLL"
This error typically occurs when Microsoft Outlook is unable to initialize the Kerio Outlook Connector. Users often encounter this when opening Outlook, resulting in a failure to access default email folders. The issue usually persists even after uninstalling the Kerio software because the Outlook profile remains configured to look for this specific DLL. Root Causes
Corrupt Installation: The Kerio Outlook Connector (KOC) installation is damaged or missing files.
Profile Conflicts: A legacy Outlook profile is still attempting to use the Kerio service after the software has been removed or updated.
Incompatibility: Updates to Microsoft Outlook (specifically Office 365 or 2019/2021 versions) may conflict with older versions of the Kerio connector. How to Resolve Issues
If you are seeing errors related to this file, follow these steps recommended by experts on Microsoft Learn: Remove the Kerio Account/Profile: Open the Control Panel and go to Mail (Microsoft Outlook).
Click on Email Accounts and remove any accounts associated with Kerio Connect.
Alternatively, click Show Profiles and delete the profile that is triggering the error, then create a new one. Reinstall Kerio Outlook Connector:
If you still intend to use Kerio, download the latest version of the Kerio Outlook Connector to ensure the kofmsp.dll file is correctly registered in the system. Check File Path:
The file is typically located in C:\Program Files (x86)\Kerio\Outlook Connector\. Ensure this directory exists and that the DLL is present if the service is active.
Kofmsp.dll is a specific Dynamic Link Library (DLL) file associated with Kofax software, primarily their scanner driver suites and capture utilities (such as Kofax VRS or Kofax ImageControls).
Below is a detailed breakdown of what this file is, why it might be appearing on your system, and how to handle issues related to it. kofmsp
Before reinstalling anything, rule out infection. Use:
If kofmsp.dll is flagged as malware, quarantine and remove it, then repair your Kofax software.