Aggie.io - Draw a picture together with your friends in real-time over the internet in your browser.
LockHunter - It is a free tool to delete files blocked by something you do not know.
FlockMod - Flockmod is a free real time online group drawing app with all the bells and whistles.
IObit Unlocker - Never Worry about “Cannot Delete Files” on Your PC
DrawPile - Drawpile is a drawing program that lets you share the canvas with other users in real time.
EMCO UnLock IT - Unlock file or folder, locked by the system or by an application