The actual limitation is in the type of windows /filter can work with, not the spaces in the name. For example, a dcc chat window can be referred to with "=nickname", but neither /filter -ww =nickname @temp nor /filter -ww @temp =nickname work. For the status window specifically, you can use the -s switch to make it the <infile>, but you can't use it as the <outfile>. In these cases, I /filter what I want in a temp file and then /loadbuf the file into the window. /loadbuf works with most types of windows.
