David Autumns already pointed at it, Lawrence is convinced and few more are: Vista, though i'm not going to touch it for the next 2 years, creates / is in sort of a VM environment. The communication of the UD.exe with the UD_xxxxxx.exe and the Science.exe, is by security controls / antivir / firewall considered as something someone phrased as 'code injection'....a suspicious process. Don't know how 'naked' u run Vista RC 1, but the system security logs should reveal something. Effectively u have to convince Vista, that the UD parts that interact and the files it writes are to be considered secure.

Yesterday read a funny story about someone who intentionally tried to blow up IE7 that comes with Vista. He said 'yes' to any install request of scripts, toolbar adds, whatnot he could find, until there was no more space left to browse. Then, he ran browser reset and absolutely everything disappeared except for the yahoo toolbar (strange aint it ;>)....... The story......seemingly Vista is very very secure.

It's Beta, albeit now RC2, but the security reporting particular is still very much under scrutiny...... can only hope someone else who runs Vista with UD agent successfully looks into this thread and lifts a tip of the veil to make it work.....or run BOINC for which there is lots more to be found on the web.

bona fortuna

p.s. BlackAdder1 should think yourself lucky. Try as I might I cannot get Vista to install on my PC at all so you are way ahead of me.

Take care

Dave