Você deve conseguir fazer isso usando subpastas diferentes nas regras de publicação na web.
Este artigo do TechNet explica os detalhes e tem algumas etapas para o ISA Server 2004 :
Web publishing provides you detailed control over access to content. Web publishing rules are rich in features, including the following:
- Mapping requests to specific internal paths. You can limit the portions of your servers that can be accessed.
- Restricting access to specific users, computers, or networks. You can restrict access, to further improve security.
- Requiring user authentication. User authentication can be passed through to the Web server, eliminating the need to reauthenticate at the Web server.
- Providing link translation. You can handle links to internal servers.
- Providing SSL bridging. You can encrypt traffic between the ISA Server computer and the Web server.
Pesquise esta seção:
Publishing Web server folders on the Internal or perimeter network to one domain name
You can publish specific folders on a Web server on the Internal network or on a perimeter network. In this scenario, both folders are published to the same domain. For example, you want to publish the \news folder to www.fabrikam.com/news, and the \updates folder to www.fabrikam.com/updates.
Para o ISA Server 2006, há este artigo (ou como arquivo do Word here ), que explica as opções que você tem para publicação. Pesquise "Propriedades da regra de publicação na Web" e "Mapeamento de caminho" dentro do documento.