Default directory for SHBrowseForFolder

I'm using SHBrowseForFolder to allow the user to select a directory, is there a way so that when the dialog box opens it starts in a default directory? OpenFileName has a parameter that allows you to do this, but I don't see anything in the BrowseInfo struct except for pidlRoot which doesn't appear to let the user move up a directory if they choose to according to the definition.

SHBrowseForFolder with start directory sample.

Thanks, that worked beautifully.