Int 2F Fn 4E53  - Silvernet - Set Runtime Parameters                       [N]

   AX = 4E53h ("NS")
   BL = 02h (function "set runtime parameters")
   BH = module ID (see #2512)
   CX = parameter index (see #2515,#2516)
   DX = new value for specified parameter
Desc:  set a WORD value in the specified SilverNET module

Note:  not all indexed parameters are writable; modifying a read-only
     parameter can result in system crashes

See Also: AX=4E53h/BL=00h,AX=4E53h/BL=01h