PowerPoint VBA

I need code so that PowerPoint will only work for one year or some other period and then it is useless. ? I need it to be password protected. ? Also I need it to read customer details and a few variables from a text file and display it on the PowerPoint page(s). Ideally I need all this information encrypted. ## Deliverables I need code so that PowerPoint will only work for one year or some other period and then it is useless. ? I need it to be password protected. ? Also I need it to read customer details and a few variables from a text file and display it on the PowerPoint page(s). Ideally I need all this information encrypted. The idea is that the customer can download the PowerPoint file from the internet. But must purchase the encrypted text file for it to function. The encrypted file would hold: ·? ? ? ? ? ? ? ? Customer Details ·? ? ? ? ? ? ? ? Variable Data for Display ·? ? ? ? ? ? ? ? Expiry Date of PowerPoint ·? ? ? ? ? ? ? ? Password Encryption can be simple.