Virus warning during installation

During installation of PSPad something will be downloaded from PSPad page.
Also a setup.exe will be put to "...\Temp\is-DPOT3.tmp\setup.exe" and executed.
This setup connets to "www.fwaterceast.com" and wants to download something.
Why does the installer do something suspect like this?
This doesn't make PSPad trustworthy to be free of adware, spyware, whateverware, ...
Where can I download a clean installation that just installs PSPad and nothing else?

Edited 1 time(s). Last edit at 2015-01-15 19:18 by Zoidberg.

This is install monetizer part. This exe connect to install monetizer server and downloads content for the installer - dynamocal offers. It downloads only informations for installer screens what are visible during installation.
During installation you can accept or decline software offer.

In case you read SPpad download page or main mirror page, you should know it. If you want to skip it, run installer with /nobundle switch or download portable version. Simple unzip it and run PSpad.

From the next version, there won't be any bundled software and installer will be clean again.

Thanks for the information!