There was an installer for JBoss AS ages ago (for 4,0,x?) and it was more hassle than what it was worth. Search the forum, you'll probably find some really old posts where the fix was to not run the installer but to download the zip file and unzip it. And that remains the official mechanism to install JBoss AS. Personally, I prefer being able to do what in Microsoft terms is called a Copy & Paste install.
Good question ,I always waitting,How config myeclipse9 and jboss application server 6.1 ?i think a long time ,the consol exception : Could not find the main class: org.jboss.Main. Program will exit.