Wrong host error messageThis error message indicates that there is an issue between an Individual license of ExtendSim and the HostID. The HostID is an identifier in the ExtendSim license file (extendsim.lic) that contains information about your computer as well as the ExtendSim installation.

This error is most often caused by one of the following:

Your computer’s system has been significantly altered such that the HostID’s information is no longer valid.

This is common if the hard drive has been replaced or the computer was wiped clean prior to installing a new operating system.

Quit ExtendSim and delete the extendsim.lic file; by default it will be located at Documents\ExtendSim.

Reactivate your license by launching ExtendSim and entering your Activation Key in the Activation Dialog. Activation will either be automatic or manual. If you get a message that the license has already been activated, please contact This email address is being protected from spambots. You need JavaScript enabled to view it..

If you get the manual activation window, click the button to generate an ExtendSim Activation Info.txt file and email it to This email address is being protected from spambots. You need JavaScript enabled to view it.. We will email you a new license file.

You have a second copy of the same ExtendSim product installed on your computer. When you launch ExtendSim, the HostID doesn't recognize that ExtendSim application as the one that was activated.

Usually this happens if you downloaded a Trial version of ExtendSim to update your existing license, but instead of replacing the existing files you installed a new set of files in a different location or under a different name.

Search your computer to see where the duplicate installation is located. Then uninstall any duplicate ExtendSim installations and delete the duplicate ExtendSim folders (installed by default in Program Files and Documents).

Reactivate your license by launching ExtendSim and entering your Activation Key in the Activation Dialog. Activation will either be automatic or manual. If you get a message that the license has already been activated, please contact This email address is being protected from spambots. You need JavaScript enabled to view it..

If you get the manual activation window, click the button to generate an ExtendSim Activation Info.txt file and email it to This email address is being protected from spambots. You need JavaScript enabled to view it.. We will send you a new license file.

Then, you can re-try updating ExtendSim to a newer release.

• If you're using ExtendSim 10.0.4 or newer, use the ExtendSim Updater to update to the latest release.

• For releases prior to 10.0.4, you must use the Trial version of ExtendSim to update to the current release. Be sure to install the Trial version using the exact same folder name and to the exact same location as your existing installation.