vb.net 2008 / Imports System.Transactions?

Using vb.net 2008. I am trying to use TransactionScope but when I put "Imports System.Transactions" at the top of my module it is not taking it. Do I need 开发者_StackOverflow社区to do some setting or something?

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you need to add a reference to System.Transactions, right click on the project in solution explorer and select Add Reference.