Loading a shared library in AIX

Hi,

I have an application running on AIX. The app is deployed on Webspshere server. Due to some reason, i have to make use of a third party library (Sigar API's) from my application. This library requires an .so file as well.
Is there any location where i can put this *.so file and it will be read or loaded by the app server automatically or there is some specific procedure we need to follow for this
Request you to tell me how to load / link / install this .so file. The name of the so file is libsigar-ppc-aix-5.so?

Thanks

The running of the main will load all dynamic objects. They need to be in dirs of $LIBPATH.