Exchange 2010 Accidentally deleted the Default Web Site

I wanted to delete a SharePoint site but the procedure delete all the "Default Web Site" where all the Exchange 2010 virtual directory where mapped.
Is there a simple way to recover the all IIS Exchange configuration ?  Please Help !!!

Thank you.
Philippe VINOTAsked:
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VB ITSSpecialist ConsultantCommented:
Philippe VINOTAuthor Commented:
Unfortunately I can't go any more in EMC  : I get an "Initialization failed" error
And Exchange Management Shell tels that it can't connect to the server

VB ITSSpecialist ConsultantCommented:
Ouch. OK next step would be to try re-installing the CAS role on the server.
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Philippe VINOTAuthor Commented:
OK, I will try this ....
Philippe VINOTAuthor Commented:
I've another error when trying to remove the CAS Role :
In the "Unified Messaging Role" part :
"The operation couldn't be performed because object 'MYEXCHSRV' couldn't be found on ''
and then "Setup was unable to uninstall the server role"

I've checked, and  "MYEXCHSRV" object IS in the list of Computers on the DC and I have no problems when logging on MYEXCHSRV with domain accounts.
VB ITSSpecialist ConsultantCommented:
How are you uninstalling the CAS role? Is it through the Program and Features Control Panel applet?
Costas GeorgiouNetwork AdministratorCommented:
I have had this issue in the past for a client

If you have a backup restore IIS from backup and that will be the best and easiest option..
Costas GeorgiouNetwork AdministratorCommented:
PS: Exchange relies on IIS for its communication
Even Exchange console and Shell all work and revolve around the IIS and its authentication.
Philippe VINOTAuthor Commented:
Yes I'm unsinstalling the CAS role through Program and Features.
Unfortunately, I have no backup of this server.
I'm now planing to configure a new server on the domain with Exchange 2010 and to move the mail box from the old server to the new one. Do you think that this will work ?
I can't remember if we can initiate the mailbox move from the destination server ?
And I'm not sure that the new server will be able to connect to the old one  ....
VB ITSSpecialist ConsultantCommented:
Yes you can initiate a mailbox move from the new server, however I'm not 100% confident that this will work. I still think you should try and remove the CAS role from the current server as opposed to building a new one. I'll do some research on the error message and get back to you.
Simon Butler (Sembee)ConsultantCommented:
Oh dear.
There is an easy way to fix this.

Start Powershell on the server (normal powershell).

Then in the PowerShell window enter the following:

Add-PSSnapin Microsoft.Exchange.Management.PowerShell.E2010

Once the commandlets have been loaded, recreate the PowerShell virtual directory:

New-PowerShellVirtualDirectory -Name Powershell -RequireSSL:$False

If it throws an error, then remove it first

Remove-PowerShellVirtualDirectory "Powershell (Default Web Site)"

Then recreate it.

That should let you start EMC. Once in EMC you can use the console to recreate the virtual directories. If it doesn't work, then you will have to go back to EMS and remove and recreate the virtual directories. The remove step removes them from both Exchange and IIS.

Philippe VINOTAuthor Commented:
When I try to create the virtual directory I get the error :
New-PowerShellVirtualDirectory : Web object 'IIS:// VC/1/ROOT' can't be found.

Any ideas ?
Simon Butler (Sembee)ConsultantCommented:
Did you delete the old one first?

Philippe VINOTAuthor Commented:
Remove-PowerShellVirtualDirectory "Powershell (Default Web Site)"
and then
New-PowerShellVirtualDirectory -Name Powershell -RequireSSL:$False
Simon Butler (Sembee)ConsultantCommented:
Lets step back a bit.
Have you recreated the Default Web Site?
If so, does it have the ID of 1?

In an elevated command prompt, change to the following directory:

Then type notepad applicationHost.config

Find the Default Web Site and change the ID from 123456789 (or whatever ID it is) to 1.
Save the file.
Then run IISRESET and restart the IIS management console. The web site should be shown with the correct ID. You can then follow my previous instructions.

Philippe VINOTAuthor Commented:
I can't find the Default Web Site in  applicationHost.config
It's the problem : the default web site has been deleted and I don't know the right way to recreate it.
Philippe VINOTAuthor Commented:
OK, I think I've got the solution : I've recover the 2 files administration.config and applicationHost.config from
And after an IISRESET, the default web site with all the Exchange configuration is back.
Some quick tests shows that owa and ECM are working again.
Good News !!!

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Simon Butler (Sembee)ConsultantCommented:
To complete the question for anyone else reading this question - to recreate the Default Web site, just create a new web site with the name "Default Web Site". Then renumber it if required as per my instructions above.

Philippe VINOTAuthor Commented:
The solutions provided by the answers didn't apply to my situation
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