I want to make a program that locks a certain program (i.e make the user not able to run it)..

It does not have to be secure.

It just needs to make some damage to the target program upon clicking on 'lock' so that the ordinary user cannot run the target program.. it is "locked"..



Of course, the reverse process, the unlocking, should also work..



When I use
Code:
Open Target for Append as #1
Write #1, Gibberish
Close #1
the target program gets totally damaged since i appended in text stream. Not reversible..





Thanks in advance.