/usr/share/kde4/apps/plasma/plasmoids/org.kde.appletstrip/ is in plasma-widgets-active 2.0+git2012021101-0ubuntu4~ppa3.
This file is owned by root:root, with mode 0o755.
..
/usr/share/kde4/apps/plasma/plasmoids/org.kde.appletstrip/contents/
/usr/share/kde4/apps/plasma/plasmoids/org.kde.appletstrip/contents/config/
/usr/share/kde4/apps/plasma/plasmoids/org.kde.appletstrip/contents/config/main.xml
/usr/share/kde4/apps/plasma/plasmoids/org.kde.appletstrip/contents/ui/
/usr/share/kde4/apps/plasma/plasmoids/org.kde.appletstrip/contents/ui/ExtraActions.qml
/usr/share/kde4/apps/plasma/plasmoids/org.kde.appletstrip/contents/ui/IconButton.qml
/usr/share/kde4/apps/plasma/plasmoids/org.kde.appletstrip/contents/ui/LayoutManager.js
/usr/share/kde4/apps/plasma/plasmoids/org.kde.appletstrip/contents/ui/MoveButton.qml
/usr/share/kde4/apps/plasma/plasmoids/org.kde.appletstrip/contents/ui/PlasmoidContainer.qml
/usr/share/kde4/apps/plasma/plasmoids/org.kde.appletstrip/contents/ui/main.qml
/usr/share/kde4/apps/plasma/plasmoids/org.kde.appletstrip/metadata.desktop