We described shareware in another article, but because both commercial software and shareware require payment, they're the target of pirates who seek to make these kinds of programs free to use. Depending on their binding legal agreements, licensing typically allows the use of a single program on a single computer. File viruses may also be referred to as parasitic viruses, however should a virus work from both the boot-sector and from an infected program, the virus is then known as a multipartite virus. Why viruses exist remains a mystery, however we had privy access to the mind behind a virus programmer who explained his motivation behind his destructive inclinations. Not a single command of one language can be interchanged with the commands or language of another. But all of them can be used to control a computer. Now it would be impossible to teach you how to program any language in a single article. But we can still introduce you to some of programming's most basic concepts - starting with the commands we talked about earlier. That way, these three programs would load every time we turn on the computer. If you wanted these programs to start minimized, you could type the following into a batch file instead: START http://www.yahoo.com /m START "c:/program files/microsoft office/office/winword.exe" /m START "c:/windows/calc. The Internet as a whole is the result of free permission to access the web, use the web, contribute to the web, and share the web with others. But it certainly hasn't stopped there. In the not too distant past, Netscape converted its once commercial version of its Navigator web browser to open source. Most computer users don't know which files are safe to delete and which aren't. The worst thing anyone could do is snoop around crucial Window directories and haphazardly delete files that don't look familiar. Doing so could render important programs inoperable, corrupt the Windows operating system, and possibly prevent the computer from even starting.