The result of appcmd list modules:
Microsoft Windows [versie 6.0.6001]
Copyright (c) 2006 Microsoft Corporation. Alle rechten voorbehouden.
C:\Windows\System32\inetsrv>appcmd list modules
MODULE "HttpRedirectionModule" ( native, preCondition: )
MODULE "IsapiModule" ( native, preCondition: )
MODULE "ConfigurationValidationModule" ( native, preCondition: )
MODULE "DynamicCompressionModule" ( native, preCondition: )
MODULE "ServerSideIncludeModule" ( native, preCondition: )
MODULE "CertificateMappingAuthenticationModule" ( native, preCondition: )
MODULE "UrlAuthorizationModule" ( native, preCondition: )
MODULE "IsapiFilterModule" ( native, preCondition: )
MODULE "BasicAuthenticationModule" ( native, preCondition: )
MODULE "DigestAuthenticationModule" ( native, preCondition: )
MODULE "WindowsAuthenticationModule" ( native, preCondition: )
MODULE "IISCertificateMappingAuthenticationModule" ( native, preCondition: )
MODULE "IpRestrictionModule" ( native, preCondition: )
MODULE "CustomLoggingModule" ( native, preCondition: )
MODULE "FailedRequestsTracingModule" ( native, preCondition: )
MODULE "CgiModule" ( native, preCondition: )
MODULE "FastCgiModule" ( native, preCondition: )
MODULE "StaticFileModule" ( native, preCondition: )
MODULE "DefaultDocumentModule" ( native, preCondition: )
MODULE "DirectoryListingModule" ( native, preCondition: )
The result of appcmd list modules /app.name:"Default Web Site/"
MODULE "HttpRedirectionModule" ( native, preCondition: )
MODULE "IsapiModule" ( native, preCondition: )
MODULE "ConfigurationValidationModule" ( native, preCondition: )
MODULE "DynamicCompressionModule" ( native, preCondition: )
MODULE "ServerSideIncludeModule" ( native, preCondition: )
MODULE "CertificateMappingAuthenticationModule" ( native, preCondition: )
MODULE "UrlAuthorizationModule" ( native, preCondition: )
MODULE "IsapiFilterModule" ( native, preCondition: )
MODULE "BasicAuthenticationModule" ( native, preCondition: )
MODULE "DigestAuthenticationModule" ( native, preCondition: )
MODULE "WindowsAuthenticationModule" ( native, preCondition: )
MODULE "IISCertificateMappingAuthenticationModule" ( native, preCondition: )
MODULE "IpRestrictionModule" ( native, preCondition: )
MODULE "CustomLoggingModule" ( native, preCondition: )
MODULE "FailedRequestsTracingModule" ( native, preCondition: )
MODULE "CgiModule" ( native, preCondition: )
MODULE "FastCgiModule" ( native, preCondition: )
MODULE "StaticFileModule" ( native, preCondition: )
MODULE "DefaultDocumentModule" ( native, preCondition: )
MODULE "DirectoryListingModule" ( native, preCondition: )
And using OptionalFeatures: default documents is installed.
I have not replaced the configuration file from another server.
I did notice an error in in ApplicationHost.config under modules. For some reason there was an entry for "DefaultDocument" and also for "DefaultDocumentModule".
I removed the entry "DefaultDocument". If I then browse to http://localhost or to http://localhost/iisstart.htm I do no longer get en error message but an empty page. That means empty in the browser but also empty with view source.