Question

I have a web site running on IIS 7.5 with integrated Windows authentication. In /Content folder (with anonymous access) there is an applet – MyApplet.jar. When using this applet, Java shows “Authentication required” popup (and this popup does not remember my password even if I check “remember” check-box).

Is there any way to remove this window?

This is Java console before loading applet:

network: Cache entry not found [url: http://192.168.10.136/Web/Examination.mvc/Details/PatientEHR/META-INF/services/org.apache.xerces.xni.parser.XMLParserConfiguration, version: null]
network: Connecting http://192.168.10.136/Web/Examination.mvc/Details/PatientEHR/META-INF/services/org.apache.xerces.xni.parser.XMLParserConfiguration with proxy=DIRECT
network: Connecting http://192.168.10.136:80/ with proxy=DIRECT
network: Connecting http://192.168.10.136/Web/Examination.mvc/Details/PatientEHR/META-INF/services/org.apache.xerces.xni.parser.XMLParserConfiguration with cookie "JCP-store=HDImageStore; JCP-key=Inf_WOPass"
network: Firewall authentication: site=/192.168.10.136:80, protocol=http, prompt=, scheme=ntlm

Answer 1

I looks like your Applet is doing some XML parsing.
If so, what is happening is that Java is looking for a XML parser (with getClass().getResource(…)) and as the path of your applet, it will perform a HTTP request to your server.

To prevent it you may want to define the XML parser in the init method of your applet with

 Class.forName("com.sun.org.apache.xerces.internal.jaxp.DocumentBuilderFactoryImpl");
 System.setProperty("javax.xml.parsers.DocumentBuilderFactory", "com.sun.org.apache.xerces.internal.jaxp.DocumentBuilderFactoryImpl");

Since Java6u10 you also have the option to remove the path of your Applet from the classpath (but not the Applet) with

<APPLET ...>
    <PARAM name="codebase_lookup" value="false">
</APPLET>

Anthony