The install / un-install dialog for OMrun license can be called from menu "License" or by using a specific command line parameter (LIC:Modify).
OMrun requires a license key. The license key must be entered at the first start of OMrun. The license dialog appears automatically if no license key has been installed yet.
The OMrun license contains the some information (visible under menu button "About").
The OMrun license file is saved under the path below:C:\ProgramData\OMIS\Licenses\OMrun.lic