If you are running a BESx server on a Windows 2008 box, you may run in to a 404 error and it not work at all. The quick fix is usually because of Java and you need to regedit:
HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\BAS-AS\Parameters\JVM Option Number 3
Change from “-Xmx1024m” to “-Xmx768m”.
Reboot and cross your fingers.