I have looked around for hours trying to find something to solve this problem, but I have resorted to you guys as a last ditch effort. I hope you can help.

I am making a CD Rom that requires the user to have at least Netscape 6.0 or IE. 4.5 and Quicktime installed.

Now they can use the CD without these to a certain extent, but not totally. So what I want to do is have a javascript to alert the user only if they do not meet the minimum requirements. Then provide a download link to upgrade.

How do I do this?

Thanks in advance.

What are you using to create the CD??

Try here: http://www.dynamicdrive.com/

They have html, javascript, etc. that you can use for free. Search for browser detection and you'll find the javascript.

Thanks guys for your help!

What are you trying to achieve with the CD as the best option may be to go for a Macromedia Director front end. From there you should be able to use an xtra to detect the installed web browser.