Well each day really we learn any thing new today what i got is i really need to share with you guys may be it will be helping you in any case Reason : Q Why the asp.net tab is not appearing in the IIS Ans when IIS 32 bit install on 64 bit windows then this problem has arrived Solution As per my research i did not find the way to show the asp.net tab but a good news is i have found the command process that helps you alot Windows Server 2003TM, Service Pack 1 enables IIS 6.0 to run 32-bit Web applications on 64-bit Windows using the Windows-32-on-Windows-64 (WOW64) compatibility layer. IIS 6.0 using WOW64 is intended to run 32-bit personal productivity applications needed by software developers and administrators, including 32-bit Internet Information Services (IIS) Web applications. For more information about running 32-bit applications on 64-bit Windows, see Running 32-bit Applications on 64-bit Windows. To enable IIS 6.0 to run 32-bit applications on 64-bit Windows