The importance of knowing the various search facilities available on a range of software packages, on a comparative basis, cannot be overemphasised. This study concerns with laying the foundation for such exercise. W ith the application of information technology in libraries, selection of an appropriate library automation software package has become a challenge for the library administrators. ... [Show full abstract] Online Public Access Catalogue (OPAC) is an important module in all library packages. The present study evaluates three important library software packages, namely, Alice for Windows, Libsys, and Virtua in the context of OPAC module.