ARCGIS LICENSE MANAGER :
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1./ Copy the file license.dat ( from crack folder in the CD) to your PC and use Editor to
edit the file and overwrite the word "HOSTNAME" with your computer name or IP adress

2./ Install ArcGis License Manager
(when it will ask you about License file use the file that u saved in step 1)
3./ DON'T RESTART YOUR COMPUTER !!!

4./ Copy arcgis.exe & license.dat to the installed directory
(c:\program files\esri\license\arcgis9x) overwrite original arcgis.exe

5./ Start lmtools (License Manager Tools)

6./ Click on Configuration using Services and choose "ArgGIS license server"

7./ Then Click Configure Services and set
Path to the license file :
c:\program files\esri\license\arcgis9x\license.dat (for instance)

8./ Click on Save Service

9./ Click on Start/Stop/Reread & Start Server
You can Click on Server Diagnostic to make sure all went fine.

10./ You are done.


ARCGIS DESKTOP :
---------------
Server
Program file > ESRI >License >arcgis9x >lmtools >Config;using services > "ArcGis licenss server" >Start stop >Start server > server diagnostic............and so on