Why am I having trouble opening filenames from Explorer when they contain embedded spaces?
This is due to a bug in Explorer. It doesn’t enclose a filename in double quotes before sending it off to the associated application. In the file associations set up by Boxer’s installer, double quotes have been added around “%1”, so you’ll find these associations (.TXT, .BAT, etc) work fine. But for any file associations you create yourself, or if you elected not to allow Boxer’s installer to create the associations, you’ll need to manually edit the association to have double quotes around “%1”. You’ll find that Boxer’s help topic entitled ‘File Associations’ has additional useful information about this subject.