MSSQL adapter configuration problem

Dear All
I am trying to configure the MsSQL adapter( Intelligent ).
I have installed MSSQL client 6.5 in my PC ( Windowns NT )

I am facing the following error message when configuring the adapter
“Java.lang.UnSatisfiedLinkError : D:\active41\bin\mssql7jni.dll %1 is not a valid Windows NT application”

Please help me how to fix this

Thanks and Regards