Method of providing environmental protection to an electronic enclosure

A method of environmentally protecting at least a portion of an interior of an electronic assembly, comprising:

• placing an electrically conductive electromagnetic shield having plurality of entry holes and a plurality of cavities in contact with a circuit board having electrical components thereon so as to substantially enclose a plurality of compartments between said circuit board and said shield, wherein each of said compartments connects to at least one of said entry holes;
• positioning at least one electrically conductive gasket between said circuit board and said shield, wherein said circuit board is in electrical contact with said shield through said gasket;
• joining together said shield and a first housing section so as to substantially enclose said circuit board therebetween;
• and
• applying a conformal coating by introducing conformal coating into said compartments through said entry holes while holding said shield in contact with said circuit board so that said coating is applied to an exposed portion of said circuit board within said compartments, but not applied to portions of said circuit board contacted by said shield.