[the patch you mention doesn't make it worse, it just reduces the size of the STID_WINE_HELP resource which should fit in 40 char:s AFAICS from po files]
there are .hlp files which caption is still in the form 'title help - filename'
when in that form, only the filename part is displayed (drive and directories are dropped)
(2 out of 78 in my local store). reason isn't 100% clear (even if the two report an error 'buf[0x14] = 0' which an entry which isn't implemented yet; but 2 is to few to be able to generalize). We need to figure out whether it just shows incorrect encoding (and the title derives from that), or something else
last but not least, I have also (1) .hlp file where the title isn't cropped to 51 characters
so IMO, it will require more work
perhaps first and simple step would be to remove driver and directories from displayed filename:
* that would be one step into the right direction * it will reduce the not useful information (even if not perfect)