Thank you for the reply. I understand that enabling the license is as simple as dropping the license file to the correct location on the server. We have successfully done that and exporting to PPT from the report toolbar works fine.
The issue is when receiving the PPT attachment as an email from SSRS subscriptions. I don't know how familiar you are with SQL Reporting Services but it has a feature when you go to the report management section that allows you to create scheduled subscriptions. The subscription allows you to stipulate many things such as the email receipients, when you want the report to run as well as setting the report parameters. Also you can set the email subject and body as well as whether to send the report as an attachment and, if so, you can specify the file format same as when you export from the report directly.
This is the feature that is not recognizing the license file. If I send a report subscription to a receipient and specify the report to be delivered as a PPT attachment, the report shows the non licensed version.
Hope this explains things.