Just for reference, may be wrong
�?�Data Type: IFeatureLayer.DataSourceType
�?�Feature Class: IFeatureLayer.featureClass
�?�SERVER: IFeatureLayer.featureClass->Idataset->IpropertySet->GetProperty("Server")
�?�INSTANCE:IFeatureLayer.featureClass->Idataset->IpropertySet->GetProperty("Instance")
�?�Location:IFeatureLayer.featureClass->Idataset->IpropertySet->GetProperty("database")
�?�AUTHENTICATION_MODE:IFeatureLayer.featureClass->Idataset->IpropertySet->GetProperty("AUTHENTICATION_MODE")
�?�VERSION:IFeatureLayer.featureClass->Idataset->IpropertySet->GetProperty("version")
Regards,
Bing