can i upgrade from sql 2005 express to sql server 2005 enterprise edition ?

if i upgrade from sql server 2005 expressto sql server 2005 enterprise can i do it ?
am i need to uninstall 2005 express before ?

hi,

as per ms-help://MS.SQLCC.v9/MS.SQLSVR.v9.en/instsql9/html/702359c4-6ca9-42a8-860c-a95a802898a1.htm help topic of Books OnLine, you can upgrade to all 32bit editions of SQL Server 2005, including

SQL Server 2005 Enterprise Edition

SQL Server 2005 Developer Edition

SQL Server 2005 Standard Edition

SQL Server 2005 Workgroup Edition

SQL Server 2005 Express Edition with Advanced Services

a similar matrix is available on www.microsoft.com/sql sub area too, but at the moment it seems I'm unable to access Microsoft web site..

regards