Note: These instructions try to cover both 10.1.2 and 10.1.3, and there are some differences in terms. But the principle is the same: You have an EAR file and an application name, and you use the web-based interface to upload and deploy the application.
  1. Go to Application Server Control for your Middle-Tier
  2. In the System Components section, click on "home" (Not applicable in 10.1.3)
  3. Select Applications
  4. Click Deploy EAR file (in 10.1.3: Deploy)
  5. Deploy J2EE Application:
  6. Click Continue
  7. Click Finish
  8. Click Deploy
  9. When you are told that the Web application was successfully deployed, click OK

    Note: An alternative to using Application Server Control (in case your laptop is getting low on memory) is to use the dcmctl command line utility, e.g.: 

    cd /d d:\ora101202mt\dcm\bin
call dcmctl.bat deployApplication -f D:\data\java\myWork\mfjp\deploy\mfjp.ear -a mfjp

    For OC4J standalone, use this command instead: 

    set JAVA_HOME=D:\ora101202infra\jdk
set ORACLE_HOME=D:\ora10133oc4j
cd /d %ORACLE_HOME%\j2ee\home
%JAVA_HOME%\bin\java -jar admin_client.jar deployer:oc4j:localhost oc4jadmin welcome1 -redeploy -file D:\data\jdev10133\myapp\deploy\myapp.ear -deploymentName myapp -bindAllWebApps