To get the name of the computer/host

This is a quick and dirty function for preventing SQL Injection, the function is designed to clean any variable that will be concatenated into an SQL query. Apostrophes and Double-Quotes are changed to entities in order to ensure that encoding does not become an issue when the content is pulled back into a page. I'm looking for criticism here, I want to know if this is secure or not.

This is a great little script that you can put on a friend's flash drive. It won't do any harm to their computer...it's just funny to watch. Put these 2 files in the "root" of the flash drive, cd, or any type of media/external drive. When they plug it in it will run the autorun script which then runs the shutdown script and restarts their computer! You will get a few laughs out of it...guaranteed!

Convert a decimal symbol to a binary

Displays the hex value for an HTML color given the decimal RGB values. Uses Internet Explorer to show the hex value in the color itself.

A painfully simple method of viewing the contents of an ASP script via an ASP script.

Converts Hex values to Decimal, useful for reading & converting values from the registry.

If you're asking your users to submit a password of 6-12 characters, you want to make sure it is done properly and without any special characters which could compromise your system.

To do this, you would want to use regular expressions

Validating the email address

Check if a user is logged in or not