From the Home page of Installation Manger, click on Install and on next page select IBM WebSphere Application Server for Developer package and then select Next.Open Installation Manager add WAS repository disk (diskTag.inf) location.In Features tab, select IBMWebSphereApplicationServerLibert圜ore x.x.x and click Next.Here again select ‘Create a New Package Group Check box’ and choose the path where it needs to be installed (C:\IBM\WebSphere\Liberty).
Now Select Install and Select the required version and packages to be installed and click on Next.Open Installation Manager and add the repository of IBM Websphere Application Server Liberty Core.
In the Add Repository dialog box Browse the RAD installation config file ‘nfig’ and then click OK.Click on File->Preferences and then Select Repositories.Rational Application Developer Installation.First Installation Manager has to be installed to continue further.IBM Installation Manager is an application that makes it easier to download, install, and update code for IBM software products.The following steps gives an overview of Installing WCS in your machine.