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Failed to load msxmlsql.dll

This article helps Webgility Desktop users resolve the error message “Failed to load msxmlsql.dll,” which occurs when the application is unable to locate or load a required Dynamic Link Library (DLL) file. The msxmlsql.dll file is essential for database connectivity, and when it is missing, corrupted, or improperly registered, Webgility Desktop may fail to start or operate correctly. The article provides troubleshooting steps to identify the cause, restore or register the missing DLL file, and ensure proper functionality of the Webgility Desktop application.

 Error Message:

Why This Happens

Several factors can cause this error:

  • Missing or corrupted DLL file
  • An outdated or incompatible version of the DLL
  • Registry issues referencing the DLL incorrectly
  • Malware or viruses that may have damaged or removed required components
  • SQL Services not running or improperly configured

Troubleshooting Steps

Close Webgility Desktop

  • Make sure Webgility Desktop and Scheduler is fully closed (on all the required machines).
  • Restart SQL Services for Webgility Desktop
    • Click the Windows Start button, then type services and press Enter.
    • In the Services window, locate the SQL Server instance used by Webgility.
      • Look for names like
        • SQL Server (UNIFY)
        • Or your specific SQL instance name
    • Right-click the SQL Server service and select Restart.
    • Restart the SQL Server Browser Service
      • In the same Services window, locate SQL Server Browser.
      • Right-click it and click Restart.

        These services manage local database communication and can impact how DLLs are loaded and used.

        Additional Fixes to Try

        If the issue persists after restarting services, try the following:

        Reinstall Webgility Desktop

        • Login to your Webgility Portal Account by visiting : https://portal.webgility.com/login.php
        • Once logged in then under Home section look for Downloads and download the Software and install it. This installation process will automatically remove all the older files for Webgility Desktop application and replace it with the latest ones.

        Once done then try again.