Holy cow, I wrote a book!
You may be minding your own business and discover
that your clipboard has stopped working.
You try to copy something to the clipboard,
and it's not there.
You try to paste something from the clipboard,
and nothing comes out.
What's going on?
The clipboard is a shared resource.
(More specifically, shared among programs that run on the same desktop.)
The window manager automatically closes the clipboard if
a process terminates while it has ownership of the clipboard,
but if a program opens the clipboard and simply forgets to close it
for whatever reason,
the clipboard will remain unavailable to other programs
until that program exits.
If you find yourself in this situation,
and you want your clipboard back,
you'll have to start exiting programs until you find the one
that has been holding the clipboard locked.
Terminal Services Team
one case where
the rdpclip program can
become the "bad guy" that locks up the clipboard.
second part to the story for those who can't get enough.)
Or it might be
a Virtual PC Virtual Machine Addition.