Newbie has question

[Tony Bray <TBray@...>]

Hello all,

I need to put a timelock on some software that I don't have the code to.  Do
any of you know how to inject code into an exe?  I know most of you work in
reverse of this but it is something that I have to do.  I don't need
anything fancy.  I just need to be able to set a number of days for a trial
and then stop execution.  I then need to allow the user to renew the trial
or totally unlock the file.  I program in Delphi/C++.  

Tony Bray