Software sharing through P2P file sharing has been a controversial topic, as it has been used for both legitimate and illegitimate purposes. Some examples include:

1. _Pirated software_: Sharing copyrighted software without permission, violating licensing agreements and copyright laws.

2. _Open-source software_: Sharing open-source software, which is freely available and modifiable.

3. _Freeware_: Sharing software that is free to use, but may have limitations or restrictions.

4. _Shareware_: Sharing software that is free to try, but requires payment to unlock full features.

5. _Abandonware_: Sharing outdated or abandoned software, often no longer supported by the developer.

6. _Beta testing_: Sharing pre-release software for testing and feedback purposes.

7. _Software distribution_: Distributing software through P2P networks, reducing reliance on centralized servers.

8. _Software development_: Collaborative software development, sharing code and resources.

While software sharing through P2P file sharing has benefits like accessibility and collaboration, it also raises concerns about copyright infringement, licensing violations, and malware distribution.