Proven safe PPI networks for windows software?

Back in 2011 we developed and lunched 3 windows software with a hope to earn from PPI networks.
We've published our software to most download sites (that accepted our software).
At the beginning (first month) we got some revenue; not decent but something to see light in this platform .
But from the second month we started getting complains of malware from several sources which were being delivered by our software. We had to put our software down and removed completely.

Our earning was not capped and remained unclaimed.

Since then we haven't added any of such crap, left the software there clean from any bundle.
By now I think one of our software got over 100k installs.

Now I feel like to going back to PPI again with a clean bundle if available.

Do you know any PPI bundle is still good, clean and pays well?

I know InstallUnion.com has a clean bundle and only accept legitimate software and has one of the best payouts.

Sheikh said:

I know InstallUnion.com has a clean bundle and only accept legitimate software and has one of the best payouts.

Click to expand...

I believe you have experience using this network. How they per per install and what's their payment processor?
There's no much information in their website.

We have clean PPI offer, feel free to ping me on skype, @liuliyan211