HPDSM is probably from HP Software Download Manager but that was EOL years ago. If that's it, you can delete that folder.
I'm not sure about hpswsetup.
SWSETUP is the default folder where HP...

You are correct that HP Image Assistant is not installed, but treated like portable files. This allows you to put it on USB flash drives and carry it around. If you have upgraded (now 5.1.7), just...