Problem Statement:- 
License File not found.
Problem Description:- 
An issue comes to a specific user while using the Item matrix on the terminal server. 
Troubleshooting attempts :
-- Gave user full permission to the item matrix folder on the SQL Server and at
-- To the SAP folders under program files.
-- The exe files under the C:\Program Files (x86)\CitiXsys are also allowed through the firewall. 
-- Checked the Item Matrix Add-on as well as License information for the user. 
-- Checked the "Users-Setup" settings for the user in SAP 
Symptoms : 
itemMatrix_Lite: Cannot find license file.No such file or directory.
Resolution/Work Around:
Once Item Matrix Add-on is there, it will show the item Matrix settings In the "Users - Setup" screen ;
It was enabled for that user. After this the SAP B1 user the user can login into the SAP B1 without any error.