I\'m deploying a web app package from the MSBuild command line to MSDepSvc on IIS6 which is working fine with the following command using basic authentication:
I looked in the Microsoft.Web.Publishing.targets and saw this:
Basic
WMSVC
...
So, it looks like the default is Basic
authentication when running from MSBuild. Then I found this http://technet.microsoft.com/de-de/library/dd569001(WS.10).aspx
authenticationType specifies the type of authentication to be used. The possible values are NTLM and Basic. If the wmsvc provider setting is specified, the default authentication type is Basic; otherwise, the default authentication type is NTLM.
I haven't tried it yet, but maybe it's something like /p:AuthType=NTLM