alias clearcb {
var %t
.comopen ie.doc htmlfile
%t = $com(ie.doc,parentwindow,2,dispatch* ie.win)
%t = $com(ie.win,clipboarddata,2,dispatch* ie.cb)
%t = $com(ie.cb,cleardata,1)
:error
tokenize 32 ie.doc ie.win ie.cb
scon -r if ($com( $* )) .comclose $*
}