Hi,
I downloaded Acrobat Reader and tried. Indeed I'm also getting -3 as a return value.
Then I realised that the Acrobat Reader you download is 64 bit and I'm running 32 bit Powerbuilder.
So I googled a bit and found this: https://community.adobe.com/t5/acrobat-discussions/installing-acrobat-dc-32-bit-on-a-64-bit-machine/td-p/12655343
with a link to the 32 bit version here: https://trials.adobe.com/AdobeProducts/APRO/Acrobat_HelpX/win32/Acrobat_DC_Web_WWMUI.zip
When you unzip the downloaded file, run the "setup.exe" (I first uninstalled the 64 bit version).
When the install ends, as prompted by the installer, launch Acrobat, you never know if initially you'll be prompted to do whatever ...
Close Acrobat and then run this code, now it works (at least for me) !!!
So keep a copy of your downloaded 1.1 GB zipped installer, as it might disappear from the web one day.
(Now I'll uninstall Acrobat (2.7 GB just to read a PDF file), as I absolutely hate this program. I use "PDF-Xchange Viewer", fast and light weight).
regards,
MiguelL