"Could not stat key file!" under NetInstall 6.2

RouterOS General
1

When I try install routeros 6.2 to x86 machine, the error “Could not stat key file!” is showed.
Is not posible to try RouterOS 6.x without a license key file as the previous 5.x??

2

I have the same problem- “Could not stat key file!”. Is it not possible to install demo version at x86, without key ??

3

Support say that works fine on Windows XP (fails in Windows 7)