MicroStation currently supports connecting to ArcGIS Enterprise Feature Services using ArcGIS Online (OAuth2), basic token authentication, and OAuth2 with additional configuration. However, it does not support authentication via Integrated Windows Authentication (IWA), which is commonly used in enterprise environments with Active Directory.

This limitation poses a challenge for organizations that rely on IWA for secure, seamless access to ArcGIS services. In such environments:

• Users are already authenticated via their Windows domain accounts.

• Feature Services are accessible via browsers using IWA without requiring additional credentials.

• Attempts to connect from MicroStation using Windows credentials result in 401 Unauthorized errors.

Request: Please add support for IWA in MicroStation when connecting to ArcGIS Enterprise Feature Services. This would:

• Align with enterprise security practices.

• Eliminate the need for separate built-in Portal accounts or OAuth2 configuration.

• Improve user experience by leveraging existing domain authentication.

Benefits:

• Simplifies configuration and access for domain users.

• Enhances security by avoiding credential duplication.

• Supports broader adoption of MicroStation in enterprise GIS workflows.