I'm getting this message almost every time I close my browser.
Iexplor.exe-application error
The Instruction at Ŕx01342bf2" referenced memory at Ŕx01b1ga88".
The memory could not be "read". Click on OK to terminate the program. I'm guessing the program is Internet explorer but I don't know what the message I'm getting means or what's causing the error message to happen. Can someone PLEASE help me to fix this? I would greatly appreciate it very much!
I'm using windows xp and have a dial up connection and using Internet Explorer.

You should try installing the newest non-beta version of IE. Or just use Firefox.

Go IE!

Use FireFox. Seriously. Faster, safer, more toys you can add/subtract on the fly, just better overall.

Run an antispyware scan (http://securitynewsfromthenet.blogspot.com/2007/05/spyware-fighter-essentials.html)

And keep at least two browsers so if one stops working you have a backup.
Google Chrome - Download a new browser (http://www.google.com/chrome)