undeploy km component in 7.3

Hi

In 7.0 for removing a km component from the server we had to call a special app, /irj/servlet/prt/portal/prtroot/com.sap.portal.runtime.config.component.ConfigUninstaller

In 7.3 seems that this application is not working anymore, you just get an emtpy screen..even if the application exists.. in portal app list.

Does somebody know how can i remove a km project

-i tried undeploy from nwds

-deploy of the same project with no src.config..

none of them are working,

Thank you,

Florin