can't start admin server for weblogic server domain

Dear All,

I am new to middleware installation and configuration.

I am doing installation and just follow the instruction from existing material in my company.

the steps are :

1. create repository  11.1.1.2.1

2. install jdk

3. Install Oracle 11g web logic 10.3.2.0

4. Install Forms, Reports, and Discoverer 11g (11.1.1.2.0)

5. Configure Classic Instance

All steps are successfully done

when I try to start Admin server for Weblogic Server Domain from windows start program, it fails and there is a message prompted from command prompt :

\Microsoft was unexpected at this time

\Oracle\MIddleware\user_projects\domains\ClassicDomain>

How do I know which causing this problem?

Thanks & Best Regards,