Desktop Communication App Development

I'm in need of a skilled developer to create a desktop application primarily focused on communication. The ideal candidate should have expertise in developing applications that support the Windows operating system.

The application should have the following features:
- Instant messaging functionality
- Support for file sharing
- User-friendly interface

The ideal candidate should have:
- Proven experience in developing desktop applications
- Strong communication skills to ensure the application meets my needs
- Understanding of network protocols for robust communication functionality.

The end goal of the project is to have a reliable and user-friendly communication tool that can run smoothly on Windows.