With most success I've used webactions
from Franz. I have had a terrible hard time with UCW, but tried to write some "tutorial" for how to use it. I can not tell if anything has improved with UCW since I wrote that tutorial
As you see they say it's outdated and that's true. Why is it outdated? Because nobody has cared to improve it or actualize it, and so my conclusion is, no-one seems to like it very mucch. But YMMV of course...