So, I solved this problem.
First, I found ¨rmbr.exe¨ (see attachment, remove ¨.txt¨) in MediaDirect v.3 DVD here
(special thanks for Sabravof).
After installing linux I installed grub in boot sector of extended partition:
> find /boot/grub/stage1
(hd0,4) //it means linux is on /dev/sda5
> root (hd0,4) //making /dev/sda5 as root
> setup (hd0,1) //my extended partition is /dev/sda2
After that - installing msWindows for gaming.
Then I strongly roccomond to install chipset drivers for msWindows
At last in Windows command line:
It means: boot from /dev/sda2 on power button and from /dev/sda1 (Windows partition) on MediaDirect button.
I hope my example will be useful for somebody.
P.S. Sorry for my english