As with many other programs, MagicISO probably leaves "stuff" on your hard drive and in your registry when it's uninstalled. Not having used it, I'd still suspect that some of the entries are there to ensure that the software isn't pirated.
To remove the MCDBUS file, navigate to the file itself (I think it's located at: c:\ windows\ system32\ drivers\ mcdbus.sys ). Then right click on it and select Properties. Then select the Security Tab, then the Advanced button, then the Owner Tab, then the Edit button. Double click on your account in the resulting list and then click OK. This should give you ownership of the file and the ability to delete it once you close the dialog.
CAVEAT: The following instructions can really hose your system, necessitating a complete reinstall of the OS and the loss of all your data - be very, very careful!!!
To be more aggressive (and this increases the chances of hosing your system), remove any reference to MagicISO in your the directory structure of your hard drive (backup these items first - and test to ensure that the removal doesn't break something else). Then use a registry repair utility (NOT RECOMMENDED) to scan for orphaned entries (don't "fix" anything but the items related to MagicISO - and be durned careful which one's you do delete! (backup the registry first!!!)
Alternatively, you can try using the last freeware version of Total Uninstall to reinstall the program. It will log all the changes made and will tell you which one's it can't automatically remove (leaving you to remove them). I dunno if it works with Vista tho' - so you'd have to experiment with it or buy the Vista compatible version ( http://www.martau.com/index.php
My browser caused a flood of traffic, sio my IP address was banned. Hope to fix it soon. Will get back to posting as soon as Im able. - John
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