Hi, Because the default website in IIS server has been deleted, how can I recover it in order to do something like RPC over HTTP in exchange server? Thanks

Well .. if u have a backup of IIS then restore it from the backup else .. Go to C:\WINDOWS\system32\inetsrv\History which wud look something like this MetaBase_0000004580_0000000000.xml so rename it to metabase.xml that shud bring back your default website .. if not then there is no way we can bring the default web site other then reinstalling IIS Thanks Anis

Suggest you reinstall IIS,please references this kb How to remove and reinstall IIS and Exchange