Component version mismatch

I've tried to update from to and I've got this error:
Component version mismatch!
Please reinstall Directory OPus.

I've reinstalled it but it didn't help. Also found topic with same problem, but for DO9. It didn't help. I have Windows 8.1 PRO 64 bit.

You need to reboot after installing the update.

Now I want to download direct from DOpus site and this I found confusing:

Oh, nothing wrong with download page, ignore post 3.

I did.