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
The story of kofmsp.dll is essentially a technical mystery involving broken connections between Microsoft Outlook and third-party email servers. The Mystery of the Missing Service
The "plot" usually begins when a user tries to open Outlook, only to be stopped by a cryptic error message stating:
"MAPI was unable to load the information service KOFMSP.DLL"
. For many, this feels like a sudden lockout from their digital life, often occurring right after a Windows update or a botched software installation. The Secret Identity
The "villain" (or at least the source of the conflict) isn't Microsoft itself, but a piece of software called the Kerio Outlook Connector (Offline Edition) , often abbreviated as kofmsp.dll
is a dynamic link library file that acts as a bridge, allowing Outlook to talk to a Kerio Connect
When this file goes missing, gets corrupted, or is blocked by an update, the bridge collapses, and Outlook can no longer reach the mail folders. The Resolution
In the technical "climax," the user must restore the connection. Common fixes found in support forums like Microsoft Learn GFI Support Reinstalling KOFF
: Downloading the latest version of the Kerio Outlook Connector to replace the damaged Profile Deletion
: Removing the existing Kerio email profile from the Windows Control Panel's "Mail" settings and recreating it from scratch. System Cleanup kofmsp
: Using specialized tools like the "KTUninstall" tool to scrub away old, lingering files that are preventing a fresh install.
For older systems like Windows XP, the story often has a tragic end: because the OS is no longer supported, the only solution is often to upgrade to a newer version of Windows to make the work again. Are you currently seeing this error message
in Outlook, or are you just curious about the file's background? Reinstalling Kerio Outlook Connector - KerioConnect - GFI
kofmsp.dll file is a critical component of the Kerio Outlook Connector (KOFF) , an extension used to synchronize Microsoft Outlook with Kerio Connect mail servers. support.kerioconnect.gfi.com When this DLL fails to load, users typically see the error:
"MAPI was unable to load the information service KOFMSP.DLL" Microsoft Learn Common Causes Failed Updates:
The error often appears immediately after a Windows or Office update that conflicts with existing Kerio drivers. Corrupted Installation:
Missing or damaged files within the Kerio Outlook Connector directory. MAPI Conflicts:
Outlook's Messaging Application Programming Interface (MAPI) may block the DLL if it perceives it as potentially harmful or incompatible. support.kerioconnect.gfi.com How to Fix the Error Reinstall Kerio Outlook Connector:
This is the most effective fix. You can find the installer on your company's Kerio webmail login page under the "Integration with Windows" or "Tools" section. Repair Microsoft Office:
Sometimes the underlying Office installation is corrupted. You can use the Microsoft Support and Recovery Assistant System component: Some DLL names with the pattern "*msp
or the "Repair" option in the Windows Control Panel to fix MAPI-related issues. Create a New Outlook Profile:
If the DLL error persists, the local profile cache might be corrupted. Go to Control Panel > Mail > Show Profiles and create a fresh one. Run System File Checker: Use the command sfc /scannow
in an administrative Command Prompt to ensure no core Windows files are interfering with the DLL registration. Microsoft Learn Technical Details Full Name: Kerio Outlook Connector Offline Edition Service Provider. Primary Location: Typically found in the C:\Program Files (x86)\Kerio\Outlook Connector\ directory.
It acts as the bridge that allows Outlook to handle Kerio-specific features like shared calendars and offline synchronization. support.kerioconnect.gfi.com Are you experiencing this error immediately after a Windows update , or did it occur after installing a new version of AI responses may include mistakes. Learn more
| Kofax Product Version | Typical kofmsp.dll Version | Notes |
|----------------------|------------------------------|-------|
| Capture 10.1 | 10.1.0.xxx | Initial 64-bit compatible (still 32-bit process) |
| Capture 11.0 | 11.0.1.xxx | Added JBIG2 support |
| Capture 11.1 | 11.1.0.xxx | Improved color dropout |
| TotalAgility 7.x | Version depends on build | Bundled within TAP libraries |
| Capture 12.x (latest) | 12.0.x.xxx | Dropped Windows 7 support |
To check your version:
Right-click kofmsp.dll → Properties → Details → File version.
| Attribute | Details |
|-----------|---------|
| File Name | kofmsp.dll |
| Full Name | Likely KOFAX MSP (Module/Component) - though "MSP" often stands for Microsoft Print or Managed Service Provider in other contexts, here it is specific to Kofax. |
| Primary Vendor | Kofax, Inc. (now part of Tungsten Automation) |
| Product Association | Kofax Capture, Kofax Express, Kofax Transformation Modules, Kofax VRS (VirtualReScan) |
| Typical Location | C:\Program Files (x86)\Kofax\Capture\Bin\ or similarly under Kofax product directories |
| File Type | Win32 Dynamic Link Library (DLL) |
| Architecture | Usually 32-bit (x86) even on 64-bit Windows |
| Digital Signature | Typically signed by Kofax, Inc. |
| Indicator | Suspicious | Malicious |
|-----------|------------|------------|
| Digital signature | Missing or self-signed | Invalid or expired |
| Location | %TEMP%, Downloads, or Roaming | Any non-Kofax folder |
| File size | <100 KB or >5 MB (packed) | Executable behavior detected |
| Process loading it | Unknown process (e.g., svchost.exe) | Script runner, PowerShell |
| High CPU/network | Yes, even when not scanning | Persistent outbound connections |
Recommendation: Always verify the digital signature. Right-click
kofmsp.dll→ Properties → Digital Signatures tab. Legitimate Kofax signatures will show "Kofax, Inc." or "Tungsten Automation."
The filename is an abbreviation that hints at its origin and function:
Function: This file acts as a bridge between the Windows operating system (or specific applications) and Kofax hardware drivers. It is commonly used to handle image processing, scanner communication, and the application of filters (like deskewing or despeckling) during document scanning.