The short-term solution is offered by Explorer, and especially the Search (Find?, sorry I don't have the English version) button and the delete-key.
For background and more sophisticated removal instructions, try http://www.google.com/search?hl=en&ie=UTF-8&q=rasauto.exe
You've only got to read the abstracts Google offers to get the picture.
And I would advise to do some research for other scanners than only the 'thorough' one(s) you're using now.
Hope this helps.
This file is causing a network connections dial up dialogue box to appear CONSTANTLY. The box reads "You (or a programme) has requested information from Webshots.com which dial up connection do you wish to use?" Webshots is a website where one can download images for use as screensavers & wallpaper etc. I have thoroughly scanned my system, also in safe mode, and I don't have any viruses - particularly the RCP attackers such as Sasser etc. Can I end the process somehow or just get rid of "rasauto.exe"?
I run Win XP Pro on a self built system that otherwise functions well.