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

: 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

4. How to identify its origin on a Windows machine

  1. File properties: Right-click the DLL → Properties → Details tab — check Product name, Company, File version, and Copyright.
  2. File location: system folders vs application folder give clues.
  3. Digital signature: In the Properties → Digital Signatures tab — confirm publisher identity.
  4. Installed programs: Compare the file modification date with installed programs’ install dates. Check Control Panel / Settings for recently installed software.
  5. Use tools:
    • sigcheck (Sysinternals) to show signature and origin: 
      sigcheck -i C:\path\to\kofmsp.dll
    • Strings, Dependency Walker (depends.exe), or dumpbin to inspect exported symbols.
    • Process Explorer to see which running process has the DLL loaded.
    • Autoruns to check for registration as a COM server, shell extension, or service.

Primary Function

The kofmsp.dll file acts as a communication bridge between Kofax capture software and specific input sources—most commonly network scanners, MFP devices (Multifunction Printers), or document scanners from brands like Fujitsu, Canon, or Kodak Alaris.

In technical terms, kofmsp.dll is part of Kofax’s MSP (Message Service Protocol) layer. It handles:

  1. Device discovery – Locating scanners on a local network.
  2. Image acquisition – Transferring scanned images from hardware to software.
  3. Session management – Keeping a stable communication channel during batch scanning.
  4. Error handling – Interpreting hardware exceptions and sending them back to the Kofax application.

Without kofmsp.dll, Kofax Capture or Kofax VRS (Virtual ReScan) would fail to communicate with many network-attached scanners.

2. Functional Purpose

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.

11. When to seek further help

If you want, I can:

The string "kofmsp.dll" appears to be a DLL (Dynamic Link Library) file name. Based on the naming convention, here’s a breakdown:

Likely purpose:
kofmsp.dll is probably a Kofax-related DLL, possibly a print driver component, scanner module, or a communication layer between Kofax software and Microsoft Windows imaging/printing subsystems.

Common issues:

Security note:
Always scan DLLs from unknown sources for malware, as malware sometimes mimics legitimate filenames. Legitimate kofmsp.dll should be digitally signed by Kofax, Inc. (or a related entity).

If you encountered this file in an error message or a suspicious location, provide more context for a precise analysis.

The file kofmsp.dll is a Dynamic Link Library (DLL) associated with the Kerio Connect Outlook Connector (KOC). It acts as a Messaging Application Programming Interface (MAPI) service provider, allowing Microsoft Outlook to synchronize and communicate with a Kerio Connect mail server. Technical Function

This DLL is responsible for the transport and storage provider services within Outlook. When you add a Kerio Connect account to an Outlook profile, kofmsp.dll handles the background data exchange for emails, calendars, and contacts. Common Issues and Error Messages

Users typically encounter this file through a specific error message when opening Outlook:

"MAPI was unable to load the information service KOFMSP.DLL. Be sure the service is correctly installed and configured."

This error usually indicates that the Kerio Outlook Connector is corrupted, or a remnant of a Kerio profile is interfering with Outlook’s startup. According to troubleshooting guides on the Microsoft Q&A forum, simply uninstalling the Kerio software often does not resolve the issue because the registry entries and Outlook profile settings remain. Recommended Fixes

If you are experiencing errors related to this file, you should follow these steps:

Remove the Kerio Profile: Go to Control Panel > Mail > Show Profiles. If you are no longer using Kerio, remove the profile associated with it.

Reinstall the Connector: If you still use Kerio, download the latest version of the Outlook Connector from your Kerio Connect server's web interface or the GFI/Kerio Support Portal and perform a clean installation.

Repair Office: Sometimes, MAPI errors require a repair of the Microsoft Office suite to re-register core messaging components.

The kofmsp.dll is a critical Dynamic Link Library file used primarily by the Kerio Outlook Connector (KOFF), an offline edition tool that integrates Kerio Connect mail services with Microsoft Outlook. Purpose and Function

As a Messaging Application Programming Interface (MAPI) service provider, this file allows Outlook to communicate with Kerio's backend server to synchronize emails, calendars, and contacts while offline. Without it, Outlook cannot process the specific data structures required by Kerio Connect. Common Issues and Symptoms

Most "reviews" of this file come from IT administrators and users troubleshooting errors. You likely encountered it due to one of the following:

Outlook Startup Failure: A common error message states, "MAPI was unable to load the information service KOFMSP.DLL".

Security Warnings: Modern versions of Outlook (2016/2019) may flag the file as "harmful" or block it from loading during startup to protect system integrity.

Synchronization Crashes: Corrupted versions of this DLL are frequently cited as the cause of Outlook profile freezes or emails getting stuck in the Outbox. How to Resolve Errors

Since this is a proprietary component of the Kerio software suite, you cannot simply download a replacement from a generic DLL site. According to GFI Support, the standard fixes include:

Reinstalling KOFF: Completely uninstalling and then reinstalling the Kerio Outlook Connector is the most reliable way to restore a healthy kofmsp.dll.

Profile Refresh: Deleting the existing Kerio profile in the Windows Mail Setup (Control Panel) and creating a new one can bypass loading errors.

Office Repair: In rare cases where the issue stems from broader MAPI corruption, running a Microsoft Office repair through the Control Panel may help.

Are you currently seeing a specific error code (like 0x80004005) or just looking for general information on the file?

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.

8. Comparison with Similar Kofax DLLs

| DLL | Purpose | |-----|---------| | kofmsp.dll | Main image processing & scan provider | | kofxsd.dll | Scanner device abstraction (ISIS) | | kofkfc.dll | Kofax Capture Client | | kofascent.dll | Ascent Capture legacy compatibility | | kfxRaster.dll | Low-level raster ops & file format reading |

Step 4: Run System File Checker

Corrupted system DLL loaders can mimic a missing kofmsp.dll error. Run:

sfc /scannow

After completion, reboot and test the Kofax application.