Hi, I'd like to suggest a feature, that D+ does from time to time - maybe even at every boot, scan critical areas and alerts the user if something has changed and gives him the possibility to restore the old settings.
I think about something like HijackThis does, but much more userfriendly, advanced and automated

To be more explicit
- do an automated scan of critical system areas (autostart, services, bhos, host file, network shares...) from time to time
- compare this scan to an older snapshot of the critical areas
- alert the user if something has changed (new, modified or deleted entries) and give him the possibility to set it back to the old state
- alert on obviously misconfigured security settings, which should be changed (for example a network share which is accessible by everyone without a password - or - I'm not a fan of automated updates - but another example would be the automated windows update is disabled or can't work because it's set up wrong in any way)
- alert on potentially security risks (the default settings for WinXP aren't the best in every case - for example by default WinXP saves the LM-Hash of passwords for compatibility reasons with older systems. This is only needed if you want to connect from a machine using Windows ME or earlier (I think it was ME...). Newer systems don't use this Hash anymore for authentication - but if it's saved, your userpassword can be computed in minutes...)