Diagnose SUBR --- SEND FILE TO CLIENT problems

"I'm trying to send a file to a specific location on the user's PC, but it keeps failing. The target folder exists, and this used to work, now it doesn't. The user can use notepad and save a file in in that location, but APPX won't upload to it. How do I diagnose/debug the problem?"

==> Start a session, try the SUBR --- SEND FILE TO CLIENT, then look at the tail end of the Home\appxlog.txt file, where there should be information about why it failed.

This should also provide useful information if you're having problems with:

SUBR --- LOAD URL ON CLIENT.

See also: How do I send a file to a client PC and open the file with a client side App? (i.e. Excel) _