That error code (1114) means “the dll failed during its initialization”. So my guess would be something about the way the plugin is installed.
I just downloaded version 1.952 of Sforzando here and it seems to work fine.
You didn’t by any chance install both the 32 and 64-bit editions to the same folder did you? That would probably be bad. Also, I installed to C:\VstPlugins32 and C:\VstPlugins64… perhaps there’s an issue with installation to the “Program Files” folder?
Also, does it work in other hosts?
Brad