Using the IIS UI to Configure the Virtual Directory
To use the IIS user interface to configure the virtual directory for BITS uploads, select Properties from the context menu of the virtual directory. Press the BITS Extension tab to access the BITS properties page (the BITS server extension ISAPI must be installed). Change the default property values as appropriate and enable the directory for uploads; you cannot upload files until the directory is enabled. For details on setting the property values, see the online Help.