The ActiveDirectoryMembershipProvider.GeneratePassword method of the System.Web.Security.ActiveDirectoryMembershipProvider class calls the Membership.GeneratePassword(int, int) method of the System.Web.Security.Membership class to retrieve a random password. The password length is set to the value of the ActiveDirectoryMembershipProvider.MinRequiredPasswordLength property. The password length can never be less than 14.

You can specifically call the Membership.GeneratePassword(int, int) method by referencing the System.Web.Security.ActiveDirectoryMembershipProvider class directly from the Provider property of the System.Web.Security.Membership class.

The generated password only contains alphanumeric characters and the following punctuation marks: !@#$%^&*()_-+=[{]};:<>|./?. No hidden or non-printable control characters are included in the generated password.

The generated password will contain at least the number of non-alphanumeric characters specified in the ActiveDirectoryMembershipProvider.MinRequiredNonAlphanumericCharacters property. The generated password will not be tested with the regular expression in the ActiveDirectoryMembershipProvider.PasswordStrengthRegularExpression property.