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# Error during setup: Cannot write configuration file

## description

Received this error towards end of setup. This is on a Windows Server 2008 box. Is this critical? Rest of the setup after that completed.

Info: Adding setAcl (Default Web Site/ServiceComposition.Samples.MonitoringRouterService).

Error: An error occurred when committing changes to the IIS Configuration System. The identity performing the operation was '<domain>\<user>'.
Error: Filename: \?\C:\Windows\system32\inetsrv\config\applicationHost.config
Error: Cannot write configuration file
Error count: 1.