What are MSP files in Windows Installer?

Related questions

1. Can Windows installer MSP files be deleted?
2. Is it safe to delete all system restore points?
3. Can I delete setup log files?
4. How do I permanently delete downloaded files?
5. Can I delete pkg files after installation?
6. How do I install a PKG file on a Mac?
7. Do downloads take up space on my computer?
8. What are pkgs?
9. What is SimPE?
10. What does PKG mean in salary?

Tags

1. #extension
2. #security
3. #patch
4. #paint
5. #hotfixes
6. #fixes
7. #updates
8. #files
9. #format
10. #windows
11. #programs
12. #patches
13. #typically
14. #microsoft
15. #bitmap
16. #installer