Hi marc_al
I downloaded the zip file above, But I failed to make it work with either my windows 8 Hyper-V or windows 2008 R2 hyper-V.
I just attached your VHD file as first HD of my virtual machine, also added a legacy network adapter with your mac address. I can start VM, it gave me a console window and stopped at line "DiskStation login:", but I cannot input anything with my keyboard to login..., no keyboard driver?
You should run Synology Assistant in your PC (You can download it from Synology) to connect DSM and install the firmware (PAT file) via your internet browser.