MS Access 2007 - Hyperlink with a text string sub-address from a form

I have no problem with creating a hyperlink to a url but I have been unable to Concatenate the sub-address. If I hard code it into the url, it works fine. But I 开发者_JAVA百科am looking to pull the subaddress from the Form data.

Thanks for any advice! I am a newbie and explicit directions will be appreciated.

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For the sake of clarity for the next guy (because the Asker has sort of buried the answer in comments):

Application.FollowHyperlink _
    ("emma.msrb.org/SecurityView/SecurityDetailsTrades.aspx?cusip=";) + [Cusip] 

I'll also note, I'm not sure what you are doing (Given the URL), but it may not be the most secure way of doing it.