IzoT CT displays a "Cannot start IzoT CT" or "Cannot start LonMaker" (KB1451)

    The "cannot start LonMaker" message is raised because you might need to install a Visio service pack.  To check the Visio version, open any Visio drawing or create a new blank drawing, click File and then Account. Then click About Visio. If the version number is 16.0.4266.1001, you need to install the Visio service pack. 

    Note that only 32-bit edition of Visio is supported. If Visio 64-bit is installed, please refer to Visio installation: "The system cannot find the file specified" for instructions.

    IzoT CT 4.5 fixes most of the CT and Visio issues, so recommend upgrading to CT 4.5. Note, CT  4.5 networks backed up can't be restore on earlier versions of CT like 4.0.


    Since you purchased the DVD version of IzoT CT, you can install the required service pack from the DVD. To install the Visio 2016 Service Pack on the CT DVD, follow these steps:


    1. Navigate to the VisioUpdate folder on the CT DVD, and then double-click Update.exe.
    2. Install or reinstall IzoT CT.


    You can also install the latest Visio 2016 updates using Windows Update. To update Visio 2016 with Windows Update, follow these steps:

    1. Type Update in the Windows search box, click Check for Updates, and then click Advanced Options.
    2. Select the first option to get updates for other Microsoft products when you update Windows.
    3. Click the back arrow in the top-left of the dialog to return to the Windows Update home page.
    4. Click Install Now.
    5. Install or reinstall IzoT CT.


    The new Visio version number should be 16.0.4639.1000 or higher

    Published