use this
No way to extract dta from that exe.You use getright download mananger.
It is an excellent download manager(popular).Here u dont get file corrupt.
As like u also i have got some file corrupt by using antoher download
manager.(dap,IDM).so know days i am using getright download manager
and no file corrupt for big file also.(1.5 g.b.).so try this download
manager .To use it u uninstall the previous one.get the getright in
www.getright.com