Before installing TAO DEMO license first do self check.
Open SAP TAO
Go to “Configuration” link in TAO window
In “Configuration” window go to “Self Test” tab and click “Start” button
Now go to "License" tab and click on "Check for License" button
You will get an exclamation mark in red for Valid License.
Now to install SAP TAO Demo License we have to create a file in SAP TAO root folder in Local system.
Go to C:\Program Files\SAP\SAP TAO\
Create a empty notepad file and rename it to “SAPOLDLICENSE.TAO”
Make sure the file extension should be “.TAO” and should be in capitals.
Open SAP TAO and go to “License” tab
In “Generate System Number” field under “SAP TAO License” field enter “DEMO” (should be caps)
Go to “Self Test” tab and again click “START” button.
You can find DEMO license is enabled and working.
Note: DEMO license is valid only for 14 days…..