using ExternalObject for native libraries (.dll - .framework) in Extendscript

in javascript tool guide cc extendscript documents says can use native libraries externalobject object. document explains how use in shown below.

 

mylib = new externalobject ("lib:" + samplelib); // load library

alert(mylib.version) ;

// access functions directly externalobject instance

var = mylib.method_abc(1,2.0,true, "this data") ;

alert(a) ;

mylib.unload() ;

 

when try load library windows directory;

                    var mylib = new externalobject("lib:" + "c:\\windows\\system32\\mpr.dll");   // load library       

 

extendscript console returns "externalobject not have constructor" ???

 

what i'm missing or required steps ???

 

note: use premiere pro cc 7.2.1

ppro doesn't yet support externalobject.

 

what do, in ppro? send me details (directly; b b b @ adobe dot com), , can provide better guidance.

 

-bbb

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