DA in Windows 7

Direct Access feature in windows 7 is an incredible feature where you can connect to your organization intranet without having to VPN or RAS..

i am currently using the feature. ehenever i have an internet connection , i get a notification icon asking me about whether to connect to DA or not ? then it asks for my smart card password. that' all , then i am in.

drawbacks:

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1- cannot control which traffic goes to my intranet and which goes to internet ?so for example www.abc.com i dont know whether this goes to DA ot to normal internet DNS

2- cannot start and stop it explicitly, it is not an NT service or a program i can start and stop

3- at some customer sites , i cannot connect for no reasons although port 443 is open