Windows Vista Ultimate, IE 7.0.6000.16512,  JDK 1.5_12

Internet Options is configured to use a proxy server that requires authentication.

You can reproduce this by editing the JExplorerDemo. Open TabbedBrowsersPane.java, find the createBrowser method.

Add this code, and replace the username and password with your username and password for your proxy server. Then rebuild the jar. 

        webBrowser.setAuthenticateHandler(new AuthenticateHandler() {

           public String getPassword() {

              return("proxyPassword");

           }

           public String getUserName() {

              return("proxyUser");

           }

           public void onAuthenticate() {

           }

          });

Once the getUserName() and getPassword() methods are called, I get this error:

Exception c0000005, at 76EC20E3

Access violation: attempting to write memory at address 00000000

Native function stack data: b913ef0,b6e0078,4045f9df,88000000

And the page fails to load.

-Jason