I need more information. 
You wrote you open document within WinSCP. PSPad is running or PSpad starts with
your document?

Is the same behavior with 32b version of PSpad? You can replace files in your
existing version. Enough is replace PSPad.exe, ssleay32.dll and libeay32.dll.

PSPad freeware editor https://www.pspad.com

Odpovedet emailem