Default Multi-Window Not working anymore

Hi guys

Hope one of you brilliant minded people can help me, does anyone of you perhaps have the .zip file for the multi-window app for the SM-P605 or a link. My tablet is rooted and I am running on stock 4.3 firmware. I tried to flash a transparent multi-window on and it failed, and being the noob that i am I didn't made a backup.

Thanx in advance.