Yes. ActiveADAPTER is available as a Windows Communication Foundation (WCF) service. So with or without BizTalk Server, you can query and update Active Directory with ActiveADAPTER

ActiveADAPTER WCF exposes essentially the same functionality as our Active Directory Send and Receive Adapters.
ActiveADAPTER WCF services can be consumed by BizTalk Server, but BizTalk Server is not required.
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Yes. The Send Adapter is fully compatible with dynamic ports.
A sample orchestration showing the use of ActiveADAPTER with dynamic send ports is included in the ActiveADAPTER\Samples folder.
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