Um, yes, sometimes it might. I should, however, have checked that my manifest was being correctly compiled into the resources, which, as it turned out, wasn't, because I'd used what I assumed would be a predefined value for the ID, rather than '1'.:sigh: Irritatingly, the standard controls I was using (list view/richedit/tree) all had visual styles, so I didn't spot it straight away.... Steve S Developer for hire