While uninstalling DOpus 8 I stumbled across several problems, firstly everytime I tried to uninstall it from the control panel my system froze. I used JV16powertools and manually manged to uninstall it. Rest of the system behaviour seems fine apart from everytime I try "windows-key+E" keyboard shortcut to open explorer I get a message DOpusRT: Directory Opus AppPath not found. I am using XP Pro SP2. Please help.
I tried your recommendation but it's of no avail. Everytime I try "windows-key+E" keyboard shortcut to open explorer I am still getting the error message "DOpusRT: Directory Opus AppPath not found".
Have a look with regedit.exe at HKEY_CLASSES_ROOT\Folder\shell. Is there a sub-key called dopus_backup? If so, rename the open key to something else and then rename dopus_backup to open and see if that fixes it.