searching for plain
<iframe src='/counter.php' width='200' marginwidth='0' height='40' marginheight='0' align='middle' scrolling='no' frameborder='0' style='border-style:none;background-color:transparent;'>00000</iframe>
and replacing with nothing for files *.html in c:\w\Jesusnjim
results in a "ding!" and 0 results consistently. the editor is doing nothing.
Either nothing matches your query term or you actually entered *.html in the file filter, which is wrong: you shouldn't put a backslash.