For those of you who have windows 2000 and above, MSConfig doesn't appear to exist any more, but there is a very useful utility called Startup Control Panel by Mike Lin which is available for download from
http://www.mlin.net
If you're not sure what some of the programs are that may be trying to load at startup, visit
http://www.pacs-portal.co.uk/startup...artup_full.htm which gives a comprehensive list and helps you decide which programs are unnecessary and that you can switch off to make your system boot quicker.