Yable Problem: Cannot launch renderer

My system:
Windows XP
Blender 2.26
Yable 0.30

After hitting the “Render” button on the YABLE user interface nothing (visible) happens.

The last two lines in the Blender status window say:

CPU -c1
Cannot launch renderer!!

When I look into the specified YABLEROOT directory there is a new directory created (named with the filename) with subdirectories /Materials and /Meshes. There’s an XML file but no graphics file.

Do I have to set a path somewhere to the yafray.exe file?

https://blenderartists.org/forum/viewtopic.php?p=82370&highlight=cannot+launch+renderer#82370

Oh… I searched the forum but didn’t find this thread. Thanks!