What kind of OS are you trying to install on? Windows XP or Windows 7.
Its Windows XP...
Do you have administrator rights on the machine? Also, which version of the Java JRE/JDK do you have installed on your machine?
This issue is resolved now. I have installed workbench. It was a problem with my syatem...not sure what is the problem. After formatting my system I was able to install..
Thanks for the help...