Jim:

This is the one I use (which I modified myself from one I found on the
newsgroups, please excuse any poor Visual Basic usage):

Sub OpenH()
        'DESCRIPTION: Opens the .cpp/.cxx or .h file for the current
document.
        Dim ext
        ext = ActiveDocument.FullName
        If ext = "" Then
            msgbox("Error, no active document")
            Exit Sub
        End If
        Dim DocName
        DocName = UCase(ext)

        On Error Resume Next

        Dim fn
        If Right(DocName, 4) = ".CPP" Or Right(DocName, 4) = ".CXX" Then
            fn = Left(DocName, Len(DocName) - 3) & "h"
            Application.Documents.Open(fn)
        ElseIf Right(DocName, 2) = ".H" Then
            fn = Left(DocName, Len(DocName) - 1) & "cpp"
            Application.Documents.Open(fn)
            If Err.Number Then
                fn = Left(DocName, Len(DocName) - 1) & "cxx"
                Application.Documents.Open(fn)
            End If
        Else
            MsgBox("Error, not a .cpp/.cxx or .h file")
        End If
    End Sub

"Jim Brown" <noSpam@nowhere.net> wrote...

VS 2005 has "go to header" in the context menu if you right-click anywhere
in a .cpp file, but inexplicably there's no corresponding "go to source" in
a .h file!

If you press the "open file" toolbar button it opens in the same directory
as the file you're currently editing (though I think you might be able to
switch this off), which I occasionally use to jump to the .cpp.

--
Andy