ClipClear (no install)

ClipClear is a tiny proggie that just clears your clipboard contents. It
installs itself into the tray area (near the clock) and allows you to
clear the clipboard by just clicking on its icon.
Why? If you work with large data massives (images, audio, video etc) and
copy them to the clipboard for transferring from one application to
another, then, after pasting the info to another application, the data
usually remains in the clipboard too, taking up a lot of memory
resources. Clearing the data from the clipboard frees this memory.
ClipClear's icon changes its appearance if there is something in the
clipboard. You can also launch Windows Clipboard Viewer through
ClipClear easily.
http://www.moonsoftware.com/freeware.asp

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