I just changed one of my crunchers from xp to vista 64bit and installed 6.2.6 on it.
Now I don't get my other PC to remote controlling the vista64 with the command lines.
Password is ok and remote_hosts as well.
I don't receive errors on the controlling PC but the vista64 still won't follow its orders.
Since I was not sure were to have the gui_auth and the remote_host I doubled them in the data and the program folder.
Any suggestions?

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Check that the Guest account is on in Windows. I don't quite follow it either, but for me enabling the Guest account on the controlling computer fixed the problems I had with remote controlling the other computer (Xp and 2k).

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Ok I created a guest account but it didn't really help. Now I only get a can't connect error. But through my network I have no problems connecting to the vista64 PC.

You need to poke only two holes in the VISTA firewall.

BOINC.exe needs to act as a server.
Port 31416 needs to be opened.

Both of these can be restricted to access from the hosts that are being used to control BOINC.

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