What are the proper procedures for the setting and use of the environment variable PATH in Windows 7?
I have a Dell Desktop that defines 19 entries in the Path variable. These include 5 entries for Roxio, which I guess is because I have a DVD drive and Roxio software installed from Dell; 3 entries for MS Sql Server, which I installed; 1 entry for MySQL; 2 entries for Embarcadero Rad Studio; 4 entries to Syste32, which look like Windows paths and a couple of others.
This certainly doesn't cover all the software installed on this machine. At times I have seen many more entries recorded. This seems like the base list it starts with. Are some programs setting the path at runtime? Or are programs getting their information from the Registry rather than the path? It seems like not everybody is on the same page. How is this supposed to work?