Beware - if you use AppCenter with MSP on WM5 you MUST have " abinstaller.exe" approved before you attempted to update  the Agent!  If you don't, AppCenter stops the abinstaller from running and Agent30, AirBEAM Client and RD are done.  They no longer execute.  Clean Boot is the only recovery!  My customer did this to MC7004 devices in the field and now has a lot of work to correct this.  I thought I would share this AppCenter_User.cfg for your convenience. I have tested this in the lab.