QTR-Quadtone RIP

After doing a QTRcleanout, I installed version 2.6.1 on my PC (Windows 
XP). But when I start QTRgui, I get the message "No printer definitions 
found. Be sure QTRgui is installed in the same folder as QuadtoneRIP".
Problem: there is no such thing as QuadtoneRIP - at least not as a 
program (.exe). I tried moving to QTRgui to various folders, but always 
get the same message.
Earlier versions worked fine.
Now what?

Wayne