Solution : https://service.sap.com/sap/support/notes/849851 (SAP Service marketplace login required)
Key words :
restart takes approximately 15 minutes, install web dynpro runtime, terms web dynpro runtime, web dynpro runtime, web application server, patch date nov/15/2005, support package level 12, de/download/download, time required depends, support package 12
Related Notes :
842878 | Switch on traces for Web Dynpro session management in NW04 |