This page covers when ArcGIS with higher version than 10.1 is '''already''' installed on the computer and you would like to install {{IMSMANG}} V6.0 which uses ArcEngine 10.1.
'''Try''' first with '''not''' uninstall ArcGIS with higher version than 10.1 before installing {{IMSMANG}} including ArcEngine.
=== All versions ===__NOEDITSECTION__
{| class="wikitable"
! colspan="3" | These PrSc are examples from the registry
<li> In the lower left part of the window, you see a drop-down list where you can select version. Select 10.1.
=== Version 10.2 - 10.3 ===__NOEDITSECTION__
: [[Image:ArcGISAdmin1.png|300px]]<br>
<li> Activate ArcEngine 10.1. If the expire date is not updated then you need to Activate the licence from TrayLauncher menu Client configuration.
</ol>
It seems like starting === Version 10.4 -> ===__NOEDITSECTION__ Starting from ArcGIS 10.4 the ArcAdministrator is so different that there are problems activating the it is not possible to active our license for ArcEngine 10.1 with the ArcAdministrator.
The 10.1 pane in the ArcAdministrator is empty and it is not possible to select ''ArcGISEngine (Single Use)''.<br>
<ol start="6"><li>The work-around is to update a registry key.
:[[Image:ArcEngine reg key.png|500px]]<br>
Update ''SEAT_PREFERENCE_ENGINE'' to ''Fixed''.
<li> Start the {{IMSMANG}} client and verify all seems OK.
<li> Start ArcGIS and test both ArcMap and ArcCatalog.
If '''both''' {{IMSMANG}} and ArcGIS works well then
<li> Rename all RealVersion or Version registry keys created for 10.1 to e.g. ''RealVersionOld'' and rename back all registry keys that you have modified in #1 to the '''original''' name e.g. ''RealVersion''
<li> Restart the computer and test '''both''' {{IMSMANG}} and ArcGIS again.
</ol>
<u>=== The very last resort when nothing of the above works</u><br>- all versions ===__NOEDITSECTION__