Dragdiag is an Alcatel modem diagnostic program. You shouldn't normally prevent it's start-up - but you can in order to check whether it's causing a problem.
Msn Msgr is MS Messenger - it's normal to let this start, but you don't have to if you don't want to, or want to troubleshoot.
Dumprep is a non-essential Windows facility for third-party software to use. You can disable it.
ccApp is part of Norton AV 2003 - if you disable it, Norton won't work.
Spysweeper is anti-spyware software you have installed. If you disable it, then clearly it won't be running.
You can disable all or any of the above, for troubleshooting - but be aware of the consequences. My opinion, for what it's worth, is that I wouldn't let any Norton programs within a mile of my system, because of all the troubles they can cause.