BizTalk 2009 admin console is not working all of a sudden while deploying the release

BizTalk 2009 admin console is not working all of a sudden while deploying the release

1. Full stop the application first.
2. If an assembly is previously deployed there is no need to add it as a resource to the deployed application.
3. First remove the previous version of the assembly from GAC (After stopping the application). Place the new assembly in the GAC.
4. Then in the resource node select the assembly and click refresh.
5. Browse the new version of the assembly.
6. Then restart the application and the host instances.
7. The new version of the assembly will execute.