Hi
though you can put some code in your macro to achieve this
it's quite easy (takes only a minute) to circumvent
this 'security'.
Excel is not really able to provide/develop secure
applications. The best thin you could do is create a COM
Addin and put this kind of code within this add-in

-----Original Message-----
I am preparing to distribute a program throughout my
company that I created and to minimize it being taken to
competitors I would like to include code that causes
access to the program to be denined every 120 days until a
password is given.

Any suggestions??
.