Resolution: I understand you are referring to connecting to MS SQL Server Windows Integrated Authentication (NTLM).
If so, you can achieve it using TIBCO JDBC driver specifying type2 authentication and location to 'DDJDBCAuth04.dll' library in your JDBC connection URL.
In TRA 5.5 that library is located under <tibco_home>\tpcl\5.5\jdbc\lib
Sample JDBC URL using type2 authentication and TIBCO JDBC SQLServer driver will look like: