How to install the Admin Server of a SOA domain as a Windows Service?

Steps to install the SOA Domain are:

1) Install Oracle XE under C:\Oracle\oraclexe

2) Alter the processes using sql plus with the following SQL:

alter system set processes = 200 scope=spfile;
commit;

3) Install WLS 10.3.3 under C:\Oracle\Middleware
4) Install SOA 11.1.1.2 under C:\Oracle\Middleware\Oracle_SOA1
5) Install SOA 11.1.1.3 under C:\Oracle\Middleware\Oracle_SOA1 (To avoid potential issues with the patching utility)
6) Create a SOA Domain with successful testing of the Database schema
7) Modify the nodemanager.properties file, located under <Middleware_home>\<WL_Home>\common\nodemanager folder and set the following values to the properties:
CrashRecoveryEnabled=true
StartScriptEnabled=true
8) Install NodeManager as a Windows Service.
        ...
        @echo off
        SETLOCAL
   
        set WL_HOME=D:\Oracle\Middleware11gR1PS3\wlserver_10.3
        rem call "%WL_HOME%\common\bin\commEnv.cmd"
        call "%USERDOMAIN_HOME%\bin\setDomainEnv.cmd"
   
        @rem Check that the WebLogic classes are where we expect them to be
        :checkWLS
        ...
        @echo off
        SETLOCAL
   
        set WL_HOME=D:\Oracle\Middleware11gR1PS3\wlserver_10.3
        rem call "%WL_HOME%\common\bin\commEnv.cmd"
        call "%USERDOMAIN_HOME%\bin\setDomainEnv.cmd"
   
        @rem Check that the WebLogic classes are where we expect them to be
        :checkWLS
        ...9) At this point we need to run the script file we created to install the admin server as a windows service. 

sqlplus / as sysdba
10) Run RCU and select SOA infrastructure under SOA & BPM infrastructure.