Paint Shop Pro
From WPKG | Open Source Software Deployment and Distribution
This is a silent installer for Paint Shop Pro, an image editor. More infos from here.
<package id="psp" name="Paint Shop Pro" revision="1" priority="0" reboot="false">
<check type="uninstall" condition="exists" path="Jasc Paint Shop Pro 9" />
<install cmd='%SOFTWARE%\PaintShopPro\setup /w /s /v"/qb /l* c:\netinst\logs\psp.log ALLUSERS=2" ' />
<!-- unsure - need to run psp as admin first -->
</package>