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Originally Posted by kuttoos
install fileile prob aano atho computeril already ulla prob/worm aano
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No, this is due to an external virus program. It normally spreads through USB pen drives.
Actually such a virus program can be easily created in Visual Basic. To prevent a person from using Firefox, all someone has to do is to create a program that monitors currently executing programs. Whenever a program whose window title has the words "Firefox" appears in the currently executing programs list, all the virus has to do is forcefully kill the program, which can be done in Visual Basic with a single command.
I remember, back in 1999, when I was using my first computer which was a Pentium II 233 MHz processor computer, I had to do create such a program. That time it was an MS Office 1997 tool bar application that was creating issues for me. It used to take some 8MB memory which was quite large back then considering I had only 32MB RAM. Even when I closed the application manually, it will start again right after I close it. So ultimately I created a program in Visual Basic that killed this tool bar whenever it started.
But the funniest part is, eventually, in it's attempt to successfully kill the MS Office tool bar application, my program actually started to use excess memory

And then I almost had to create another program that would successfully kill my first program
