OK.. so I've got a 'fake virus' using just batch files (WinXP in case thats not obvious btw) that opens command prompt, and types out a warning, and asks for a password (There is none of course)

It keeps looping this and eventually shuts down the computer (After 10 tries)

I call it a fake virus because you can just win-key out of the command prompt and close it to end it lol... but lotsa people don't realize that

ANyway, I've got a problem with how it's displaying its message... I'm using echo to repeatedly show the same message, with an extra letter each time (a...ar...are...are ...are y...etc) in the same exact spot, making it look like its typing it (Simple coding, very common imo) but using this method, the computer's user can hit the arrow keys and mess up the order of the letters, or they can type in and mess it up.. is there a way to disable key taps for a time using just batch files? I'm trying to do one without any C or anything, so far it's perfect aside from that...

Also, is it possible to disable the win-key minimizing that is so annoying?
Again, batch files if possible