This program is actually a trojan which you can send to someone in a MSN conversation. As soon as the person clicks it, you will be able to monitor his PC activities and also record his keystrokes. You just need to make sure that your victim's antivirus program is disabled when he/she opens it. Alternatively, you can use Binder and Cryptersoftware to successfully infect him. All you have to do is to send the file named "DON'T OPEN THIS, RENAME IT.exe" in the archive to the victim and you will be able to control him remotely through commands which are given in text file placed in the archive.