Installing : Installing System Architect XT : Enabling System Architect XT web service : Setting directory security
  
Setting directory security
1 Click on the Directory Security tab.
2 Click Edit in the Anonymous access and authentication control group.
3 Check the Integrated Windows authentication checkbox, uncheck all other checkboxes, and click OK.
4 Click OK in the SA XT Web Service Properties dialog to return to the IIS Admin tool.
5 Click File > Exit.