Jasc Paintshop Pro 9

According to the 0x0409.ini file found inside each subfolder:
"1205=/S Hide intialization dialog. For silent mode use: /S /v/qn"

Paintshop Pro 9
Switch: /S /v/qn
Full syntax: ~\PaintshopPro\Paint Shop Pro 9\Setup.exe /S /v/qn
Extraction needed: No

Animation Shop
Switch: /S /v/qn
Full syntax: ~\PaintshopPro\Animation Shop\Setup.exe /S /v/qn
Extraction needed: No

Paint Shop Photo Album 5
Switch: /S /v/qn
Full syntax: ~\PaintshopPro\Paint Shop Photo Album 5\Setup.exe /S /v/qn
Extraction needed: No

This is a known fact. The switches for Paint Shop Pro have been the same for a while now. Plus its easier to use MSI file instead of the setup.exe which loads the MSI file anyway.