How to find out AD User is active or not UserAccountControl is the property will hold the status of user in AD with that we can able to mask 0x0002 and find out the disabled status. C# Code ======= int flags = (int)result.Properties[“userAccountControl”][0]; var IsActive = !Convert.ToBoolean(flags & 0x0002); // If flags & 0x0002 => true Status is Active

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