Time Limit for Excel Workbook

[amuljha]

Hi,
I need to develop a time based model that i want to be expired after a certain amount of time. I mean like a trial version. After a certain date the excel workbook will not run, and will ask for password to run.
How can I formulate it or how to build a VBA Codes that will make this happen?
Your help will be highly appreciated.
Best Regards

[royUK]

Search the Forum,there are several examples. This example allows a specific number of uses,the same method can be applied for a date

LimitUses.zip