This paper presents a scheme for designing a totally decentralized adaptive stabilizers for a class of large-scale systems with subsystems having arbitrary relative degrees. In the control design, both strong static interactions and weak dynamic interactions are considered. It is shown that with the proposed controller global stability of the overall system and perfect regulation can be guaranteed in the presence of these interactions. The transient performance of the adaptive system with the proposed decentralized controller is also evaluated by both L-infinity and L-2 bounds of the tracking errors. It is shown that these bounds can be made arbitrarily small by properly choosing the control design parameters.