Hi Expert,

We are trying to create an object in secondary appdomain from default
appdomain using CreateInstanceAndUnwrap api, But this call seems to be
taking lot of time to return, I know the call involve loading of required
assembly of the class/type and create object of type and return the proxy
object to the default domain. But I look for any other alternative way of
doing this???

// Sample c# code
class Test
 {

   static void Main()
   {
     CreateInstanceInSecondaryAppdomain();      // OK!
   }

   static void CreateInstanceInSecondaryAppdomain()
   {
     try
     {

       // Create a new AppDomain.
       AppDomain ad =
         AppDomain.CreateDomain("SecondaryAppDomain");

       MarshalByRefType instance = (MarshalByRefType)
         ad.CreateInstanceAndUnwrap(
         Assembly.GetCallingAssembly().FullName,
         "CreateInstanceAndUnWrap.MarshalByRefType",
         true,
         BindingFlags.Default,
         null,
         null,
         null,
         null,
         null
         );

       // I'm done using the other AppDomain, so
       // I'll unload it and all its assemblies.
       AppDomain.Unload(ad);
     }
     catch (TypeLoadException e)
     {
       Console.WriteLine(e.Message);
     }
   }
 }

 class MarshalByRefType : MarshalByRefObject
 {
   //System.Runtime.Remoting.Activation.IActivator.
   // This instance method can be called via a proxy.

   public MarshalByRefType()
   {
   }
   public void SomeMethod(String sourceAppDomain)
   {
     // Display the name of the calling AppDomain and my AppDomain.
       // NOTE: The application's thread has transitioned between
AppDomains.
                              Console.WriteLine(
                              "Code from the '{0}' AppDomain\n" +
                              "called into the '{1}' AppDomain.",
                              sourceAppDomain,
                              Thread.GetDomain().FriendlyName);
   }
 }

Thanks,
GP.