How can I encrypt an exe?

[winterslam]

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

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.

[schoolbusdriver]

It just needs to make some damage to the target program....

.

Why not simply rename it, changing the extension to NOCHANCE or something ?

[winterslam]

Renaming is too simple, I guess.


I want to make a little damage to the program
perhaps by splitting the program into segments

or

manipulating the binary file in other ways

[Hack]

I want to make a little damage to the program
perhaps by splitting the program into segments

This is a violation of our AUP

You will not use these Forums for the purposes of sharing or distributing viruses, licenses, registration information, software keys, "cracks," or other information designed to do harm to or allow unlawful access to any computer hardware, software, networks, or any other systems.

If the information you are after continues along these lines, I will close this thread.

Encryption is perfectly legal and legitimate. Causing harm it not.

[winterslam]

Delete this thread if you want.. Go ahead

I'm not making a virus.

My company developed a program long time ago and lost the source code. That program has no serial number validation and other restrictions.

So I've been asked to repackage that program, with all the new customer limitations.

First I was thinking of OLE, embedding the old program inside the new program.

But i failed. Refer to my other thread..


So i'm now thinking of locking the old program and only allowing it to run only when the my new program permits when the user enters the correct serial number.


Do i have to explain everything here?

Gosh!


And if i were to make a virus, why would I put myself trouble of encrypting the file.. I can just delete..

Whatever

[CVMichael]

See this thread:
http://www.vbforums.com/showthread.php?t=380326

Specifically my post:
http://www.vbforums.com/showpost.php...0&postcount=20

PS: Read the instructions in the post !