Hi there,

IE4/5 works fine with 'javax.comm'! To integrate the Communications
API from Sun into the Internet Explorer runtime environment on 
a NT4 system just

- extract the 'comm.jar' archive to '%SystemRoot%\Java\classes\',
- copy the 'Win32Com.dll' library to a directory which is contained in 
  your system %Path%,
- copy the 'javax.comm.properties' file to '%SystemRoot%\Java\lib\'.

Generate either a test certificate using 'MakeCert.exe' from the 
latest Microsoft Java SDK (we're running v3.2) or use a real one obtained 
from the MS Certificate Server to sign your Java cabinet file with
full permissions. Verify the signature using 'ChkJava.exe'. 

The statements 

  SystemAccess sys = new MicrosoftSystemAccess();
  SystemAccess.setSystemAccess( sys );

must precede the call to 'SmartCard.start()'. In addition to that,
the sequence 

  try 
  {   
      if( Class.forName( "com.ms.security.PolicyEngine" ) != null )  
      {                
          try {                          
              com.ms.security.PolicyEngine.assertPermission( 
com.ms.security.PermissionID.SYSTEM );
          }
          catch( UnsatisfiedLinkError e ) {
          }
      }
  }
  catch( ClassNotFoundException x ) {}
  
should introduce the method executed by the thread which does 
the initialization of the serial data exchange based on the 
Communication API.

Maybe this helps.

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