Create a new or extend web application in Moss2007
1)open centeral administrator tool
2)Click on application tab
3)Click on create or extend web application
4)select exist web application or creat anew web application
Step :create a new web application changes if required
1)Select existing web site or create anew website (change description if required)
2)change port number if required
Leave default options
1)Authentication 2)Anonymous 3)Use security socket layer(ssl)4)URL
5)application pool
Changes secrity account of application pool
1)select predined i.e network service.if want user name and password select
configurable
Change iis
1)select restart iis automaticaly (prefered)
Leave defaultsetting of data base
Step :Extend web application
1)Every thing same as above except web application click to choose web
application