Unduplicate -

Unduplicate is a utility for removing duplicate lines of text from the Windows clipboard.
It displays in the system tray an icon, which activates the removal of duplicate lines from the
clipboard whenever you click on it with the left mouse button. There is a small window to alter
the configuration choices, activated by right mouse button. These options control the way header

lines are to be treated, and whether the original sequence of lines should be preserved.
After left-clicking, the clipboard content, with duplicates removed, can be pasted anywhere needed.