i'm looking for one that blocks internet access while also blocking all application on the computer except for ones that i will allow i.e. outlook, account softwares.
what are some good ones. i dont mind paying for the premium ones.
From the nature of your request I assuming you are looking for a parental lock on your computer.(I could be completely wrong if you are not)
Here are some free softwares.
Parental Control Bar
K9 Web Protection.
basically block internet acess but still allowing email in outlook and accountting softwares to run ( quickbooks ) and prevent users from installing games. basically strictly a business work pc. email and business.