FTP Accounts Site - Select the name of MS FTP site where all customer FTP accounts will be created. Default IIS 6.0 installation has "Default FTP Site" created, so it can be used to host FTP accounts.
FTP Users Groups Name - When FTP accounts is created in Microsoft FTP server an associated (with the same name) system user is also created and this user account should have access to both c:\inetpub\ftproot (read permission) and account FTP folder (read/write permissions). Specify the name of the group to which all associated windows users will be added. Then DNP gives that group "read" permissions on c:\inetpub\ftproot folder.
Optionally, if your server is enabled for Active Directory you can specify the names of organizational units (OU) where associated FTP system user accounts and "FTP Users" group will be created. It is recommended to specify organizational units if DNP work in AD environment.
Verify and change if required FTP service's "A" record that will be added to all new DNS zones. This record will allow your customers to access FTP server by means of URL, e.g. ftp://ftp.mydomain.com/. The main thing you should pay attention on is FTP server IP address.
You may also add other DNS records if required.