  In this paper a new Web-based File Hosting Service with Object Oriented Logic
in Cloud Computing called Pirus was developed. The service will be used by the
academic community of the University of Piraeus giving users the ability to
remotely store and access their personal files with no security compromises. It
also offers the administrators the ability to manage users and roles. The
objective was to deliver a fully operational service, using state-of-the-art
programming techniques to enable scalability and future development of the
existing functionality. The use of technologies such as .NET Framework, C#
programming language, CSS and jQuery, MSSQL for database hosting and the
support of Virtualization and Cloud Computing will contribute significantly in
compatibility, code reuse, reliability and reduce of maintenance costs and
resources. The service was installed and tested in a controlled environment to
ascertain the required functionality and the offered reliability and safety
with complete success.
  The technologies used and supported, allow future work in upgrading and
extending the service. Changes and improvements, in hardware and software, in
order to convert the service to a SaaS (Software as a Service) Cloud
application is a logical step in order to efficiently offer the service to a
wider community. Improved and added functionality offered by further
development will leverage the user experience.
