Hi Windows controls are those controls which are created by you in visual studio -> File new ->Visual C# ->Windows control library ...in this you can create any control which u can use in windows application like other predifined controls(clock)....if u take a label in and set it as current time....then u can use this in ur windows applicatoin ....like as control.....for more inform...http://www.c-sharpcorner.com/UploadFile/NikhilJohari/103022009103843AM/1.aspx?ArticleID=13707188-ccfe-41eb-9f04-736d3826dbd1[email protected]