Cas server uninstall failed... Now how to reinstall?

Question

Ok, here is the scenario a company set up an exchange server and IIS config got damaged. So I followed the microsoft guide on uninstalling IIS then the cas server only problem was the cas fail the uninstall about half way through now I can't uninstall
or reinstall.
Also can't reinstall the OS....
Any Ideas.
Output from installer:
Client Access Role
Failed
Error:
The following error was generated when "$error.Clear();
          $CommandAppCmd = join-path $env:SystemRoot System32\inetsrv\appcmd.exe;
          Start-SetupProcess -Name "$CommandAppCmd" -args "uninstall module exppw";
        " was run: "Process execution failed with exit code 1168.".
Process execution failed with exit code 1168.
Click here for help...
http://technet.microsoft.com/en-US/library/ms.exch.err.default(EXCHG.141).aspx?v=14.1.218.11&e=ms.exch.err.Ex88D115&l=0&cl=cp
Elapsed Time: 00:00:01
Thanks in advance

Answer 1

Sadly the guys that own the server only have the one and won't let anyone onsite on the weekends but they don't want downtime so basically they want the
perfect server!
Original Log:
# Component tasks
# Tasks for 'All Roles Common Last' component
# [ID = AllRolesCommonLast___25c25f6a6e484b32bedc5d6fa5ea3699, Wt = 1, isFatal = True] "Creating the Exchange server configuration object in Active Directory."
5/12/2010 12:50:07 AM:remove-InstalledRoleInfo -RoleName $RoleRoleName
# [ID = AllRolesCommonLast___6f2b6624392e4f678c9b5a386a4916ae, Wt = 1, isFatal = True] "Creating the Exchange server configuration object in Active Directory."
5/12/2010 12:50:07 AM:
          if ($RoleRoles)
            & $RoleBinPath\ServiceControl.ps1 EnableServices $RoleRoles.Replace('Role','').Split(',')
# [ID = AllRolesCommonLast___f688defc7999417ba5c8e7b4ca41a971, Wt = 1, isFatal = True] "Creating the Exchange server configuration object in Active Directory."
5/12/2010 12:50:07 AM:
          & $RoleBinPath\ServiceControl.ps1 EnableServices $RoleRoleName.Replace('Role','')
# [ID = AllRolesCommonLast__StartWinMgmt, Wt = 5, isFatal = True] "Starting the WMI service."
5/12/2010 12:50:08 AM:
          if (Get-Service WinMgmt* | ?{$_.Name -eq 'WinMgmt'})
            Set-Service WinMgmt -StartupType Automatic
            Start-SetupService -ServiceName WinMgmt
# [ID = AllRolesCommonLast__StartRemoteRegistry, Wt = 5, isFatal = True] "Starting the Remote Registry service."
5/12/2010 12:50:08 AM:
          if (Get-Service RemoteRegistry* | ?{$_.Name -eq 'RemoteRegistry'})
            Set-Service RemoteRegistry -StartupType Automatic
            Start-SetupService -ServiceName RemoteRegistry
# Tasks for 'File distribution Service Control' component
# [ID = FileDistributionServiceControl___474b4dc5deb44f7ca748da725a0ecac3, Wt = 1, isFatal = True] "Stopping the Microsoft Exchange File Distribution service."
5/12/2010 12:50:08 AM:stop-SetupService -ServiceName MSExchangeFDS
# Tasks for 'RPC Client Access Service Control' component
# [ID = RpcClientAccessServiceControl___4b4248cce65c4ccaa92fe5f938f2aedc, Wt = 1, isFatal = True] "Stopping Microsoft RPC Client Access."
5/12/2010 12:50:10 AM:stop-SetupService -ServiceName MSExchangeRPC
# Tasks for 'Client Access Service Control' component
# Tasks for 'File Distribution Service Configuration' component
# [ID = FileDistributionServiceComponent___659b38f67e0240199f57f0c851fe7a2b, Wt = 1, isFatal = True] "Uninstalling the Microsoft Exchange File Distribution service."
5/12/2010 12:50:11 AM:uninstall-FileDistributionService
# Tasks for 'File Distribution Service Group Metrics Perf Counters' component
# [ID = FDS_GM_PerfCountersComponent___8c292d9c21af44358441a4c99baddeab, Wt = 1, isFatal = False] "Installing FDS GM PerfCounters."
5/12/2010 12:50:16 AM:remove-perfcounters -DefinitionFileName FDSGMPerformanceCounters.xml
# Tasks for 'File Distribution Service OAB Perf Counters' component
# [ID = FDS_OAB_PerfCountersComponent___103a4c1adf974591be38633f58ec1ebc, Wt = 1, isFatal = False] "Installing FDS OAD PerfCounters."
5/12/2010 12:50:17 AM:remove-perfcounters -DefinitionFileName FDSOABPerformanceCounters.xml
# Tasks for 'Enable RPC over HTTP redirector firewall exception' component
# [ID = RpcHttpRedirectorException___653184838b334e749dbc87a567e865b2, Wt = 1, isFatal = False] "Configuring the server."
5/12/2010 12:50:17 AM:
          if ([Environment]::OSVersion.Version.Major -ge 6)
          Remove-FirewallException -FirewallRule (New-Object Microsoft.Exchange.Security.WindowsFirewall.RpcHttpRedirectorRule)
# Tasks for 'Address Book Service Configuration' component
# [ID = AddressBookComponent___fe2c1cbb8e954dd786870cdc8b3d85e9, Wt = 1, isFatal = True] "Configuring the Microsoft Exchange Address Book service."
5/12/2010 12:50:17 AM:uninstall-AddressBookService
# Tasks for 'RPC Client Access Protocol Configuration' component
# Tasks for 'Client Access Services Configuration' component
# [ID = ServicesComponent___ca981854eaa74c1ca684178d9ea52fff, Wt = 1, isFatal = True] "Configuring Client Access services."
5/12/2010 12:50:23 AM:
     get-WebServicesVirtualDirectory -Server $RoleFqdnOrName -DomainController $RoleDomainController | remove-WebServicesVirtualDirectory -DomainController $RoleDomainController -Force;
# [ID = ServicesComponent___98bb14bb96bc43babb98f8d36183263e, Wt = 1, isFatal = True] "Configuring Client Access services."
5/12/2010 12:50:24 AM:get-ActiveSyncVirtualDirectory -server $RoleFqdnOrName -DomainController $RoleDomainController | remove-ActiveSyncVirtualDirectory  -DomainController $RoleDomainController
# [ID = ServicesComponent___9b5feb8e2ff64c4ebd10edb43c3a2aa9, Wt = 1, isFatal = True] "Configuring Client Access services."
5/12/2010 12:50:26 AM:
     $clientAccessServer = get-ClientAccessServer -Identity $RoleFqdnOrName;
     if($clientAccessServer)
         if(($clientAccessServer.AutoDiscoverServiceInternalUri) -and ($clientAccessServer.AutoDiscoverSiteScope))
      set-ClientAccessServer -Identity $RoleFqdnOrName -AutoDiscoverServiceInternalUri:$null -AutoDiscoverSiteScope:$null
# [ID = ServicesComponent___a8409d9e1e024948a9cf2805368de7dd, Wt = 1, isFatal = True] "Configuring Client Access services."
5/12/2010 12:50:27 AM:get-AutodiscoverVirtualDirectory -Server $RoleFqdnOrName -DomainController $RoleDomainController | remove-AutodiscoverVirtualDirectory -DomainController $RoleDomainController
# Tasks for 'RPC-over-HTTP Proxy Configuration' component
# Tasks for 'ECP Configuration' component
# [ID = ClientAccessEcpComponent___9b61914c88354a1ca625560e0a59451c, Wt = 1, isFatal = True] "Installing/Removing the ECP component."
5/12/2010 12:50:28 AM:
          get-EcpVirtualDirectory -server $RoleFqdnOrName -DomainController $RoleDomainController | remove-EcpVirtualDirectory -DomainController $RoleDomainController;
# Tasks for 'OWA Configuration' component
# [ID = ClientAccessOwaComponent___5effe7121e1740c083904cc189687464, Wt = 1, isFatal = True] "Installing/Removing Outlook Web App Component."
5/12/2010 12:50:29 AM:
          $CommandAppCmd = join-path $env:SystemRoot System32\inetsrv\appcmd.exe;
          Start-SetupProcess -Name "$CommandAppCmd" -args "uninstall module exppw";
Current Log:
# Component tasks
# Tasks for 'OWA Configuration' component
# [ID = ClientAccessOwaComponent___5effe7121e1740c083904cc189687464, Wt = 1, isFatal = True] "Installing/Removing Outlook Web App Component."
5/12/2010 1:59:07 AM:
          $CommandAppCmd = join-path $env:SystemRoot System32\inetsrv\appcmd.exe;
          Start-SetupProcess -Name "$CommandAppCmd" -args "uninstall module exppw";
Any Ideas?