HELP with: open printing for pdf...

[Paul Dupuis]

I have very large application running under LC 6.7.11 for Windows and OSX

I have code that does an "open printing for PDF", prints a field, and
closes printing. Under OSX this works fine.

Under Windows, in both the IDE and a standalone, I get an execution
error on the open printing for pdf line with the message:
execution error at line n/a (printing: Unknown destination)

In the standalone, I might have interpreted this error as that the
"revpdfprinter.dll" did not get added to the standalone, but it is
(although why this dll is placed at the application level and not in the
Externals folder continues to puzzle me).

I also might have though the file path & name passed to open pritning
for pdf may have been a problem, but I have checked via debugger and the
file path & name is valid, in a writable location, plenty of disk space,
etc. Also tried multiple files and locations, so that is not it

However the fact that it happens in the IDE completely mystifies me. Can
ANY one tell me what this error really means and what the cause may be?