Hmmm... I'll have play and see if I can replicate the error and try find a solution, Just a question is the account your using passworded? I know if you run the normal install if the account your using isn't passworded it will ask you to enter a Computer Access Code.
Yes, you need to specify the proxy settings in the Property section of the MSI. Look for ProxyServer, ProxySettings, ProxyPort, ProxyPassword, ProxyUserName and ProxyVerifyPwd
Have found any solution to the the new version....? Andreas Same as before but the only change is LMIDeployCookieReg is now GetDeployInfo and there is only one LicenseType entry.