Set startup options
Expression Studio 3.0
You set startup options for Microsoft Expression Web by using the Application Options dialog box.
On the Tools menu, click Application Options.
In the Application Options dialog box, click the General tab.
In the Startup section, do the following:
Select this
To do this
Open last site automatically when Expression Web starts
Open the last site you opened in Expression Web when you start the program.
Check if Expression Web is the default editor for pages
Check whether Expression Web is set to open all web pages.