In the support portal, one important information is recommended versions.
User account portal: Hillstone User Center (hillstonenet.com)
Support Portal: Login - Hillstone (hillstonenet.com)
Hillstone storeID able to raise support case, download image, access free training, manual and document.
The Microsoft Active Directory Topology Diagrammer reads an Active Directory configuration using ActiveX Data Objects (ADO), and then automatically generates a Visio diagram of your Active Directory and /or your Exchange 200x Server topology. The diagramms include domains, sites, servers, administrative groups, routing groups and connectors and can be changed manually in Visio if needed.
Microsoft Active Directory Topology Diagrammer