I installed 2 new HP G5 servers, one 32-bit W2K3 for dc-file-print-backup functions , the other one as 64-bit W2K3 as dedicated exchange 2007 server. I installed custom with the all possible options (which is the same as basic + unified messaging component). Then I succesfully migrated the existing win2000 +exchange 2000 forest into this new environment and everyone is happy working in the new domain with there mailbox on exchange 2007. Now they ask me to enable owa on that exchange server. I go to IIS, notice that the default website is in status: "stopped" and I cannot start it !! I receive an error "The process cannot access the file because it is being used by another process". I have not touched IIS before on this server and this is a straight out of the box default installation of exchange 2007.
Question: What must I do to get OWA succesfully working on this new exchange 2007 installation ?