Source : http://ipis-osx.wikidot.com/forum/t-135336
1. Boot from Apple Install DVD, wait all the stuffs to load, and launch Disk Utility.
2. Unmount your OSX partition in Disk Utility
3. Close Disk Utility, open Terminal and type:
— you will see something similar to this:
— at this stage remember the correct ID for Apple_HFS OSX and id of the physical HDD.
4. Now we gonna install boot0 part of Darwin boot loader in the Master Boot Record by typing:
— if your path to Darwin boot loader package differs, feel free to change the path. It is important to identify the disk ID of your MBR; if it is not 'disk0' feel free to change it too.
5. Now we should install boot1h part of Darwin boot loader in the boot sector of our OSX partition:
As I said before, it is always a good idea to have a tool for Win you can use to display and modify your OSX files. In mine case I own MacDrive 7.
6. Type reboot in Terminal and return to your Windows.
7. Boot in Windows and check you got this line in your boot.ini:
8. Copy from /usr/standalone/i386/ a fresh copy of chain0 in your C:\ partition.
9. You may also want to refresh from /usr/standalone/i386/ your copy of boot which is in the root volume of your OSX partition.
10. Restart, you should see the Windows boot loader menu and if everything was properly set clicking on „Mac OS X 10.5.6 Leopard“ will bring you back to your beloved OSX part of life.
Hope this will help someone in trouble as I was.