Use the following article to install the 9.x ArcGIS License Manager on a Windows machine that is already hosting an 8.x ESRI License Manager. Before the installation of ArcGIS 9.x, verify that version 8.x of the ESRI License Manager has been installed and configured. If not, see the License Manager Reference Guide on the ArcInfo Workstation 8.x CD for more information.
Note:Installation of the 9.x ArcGIS License Manager is required. Adding the 9.x license file to an existing 8.x license file or using the 8.x License Manager Update License Tool does not work. Obtain a 9.x license file from ESRI Customer Service for the 9.x version of the License Manager.If the 9.x ArcGIS License Manager and the 8.x ESRI License Manager are to be installed on the same machine, they must use the same hardware key. Two hardware keys cannot be used on one machine.The two vendor daemons cannot use the same port. By default, the 9.x ARCGIS daemon is set to 27004 and the 8.x ESRI daemon is set to 27005.
Multiple versions of ArcGIS Desktop and ArcInfo Workstation cannot be installed on the same machine. The information in this article refers only to the License Manager used by these applications.
Get help from ArcGIS experts
Download the Esri Support App