We've added a new 'launcher' that is based on Java Web Start, but it attempts to launch a wrapped up .NET client before it resorts to the java client. This launcher will be now be default for browsers on windows that support Web Start, but not ClickOnce. Hopefully it will cover most of the users who previously got the .NET bootstrapper EXE. We originally developed it for 2.4, but we've backported it to 2.3 and put it in the latest pre-release. It's pretty slick, and depending on your launch options with Chrome and Firefox, it can even be more efficient than a ClickOnce launch.