Sub UnderscoreT()
        'DESCRIPTION: This macro will automatically put "_T( )" around 
        '             your strings, Author: Orin Walker, 1999, Version 1.1
        '             Last change - Acidpop(http://acidpop.tistory.com) (2012.09.07)
        '             Supported Visual Studio 2010 Macro
        Dim iCount As Integer
        Dim bFoundAQuote As Boolean
        Dim strTemp As String
        Dim strStuffAtEnd As String
        Dim bDone As Boolean
        Dim str As String
        Dim strBuildString As String
        Dim Selection As TextSelection
 
        Dim win
        win = ActiveWindow
        'If win.type <> "Text" Then
        '    MsgBox("This macro can only be run when a text editor" + _
        '      " window is active.")
        'Else
        iCount = 0
        bFoundAQuote = False
        ActiveDocument.Selection.SelectLine()
        strTemp = ActiveDocument.Selection.Text
 
        Selection = ActiveDocument.Selection
 
        strStuffAtEnd = ""
        While bDone <> True
            str = ParseString(strTemp, bFoundAQuote, strStuffAtEnd)
            strBuildString = strBuildString + str
 
            If bFoundAQuote = True Then
                strTemp = strStuffAtEnd
            Else
                bDone = True
                'ActiveDocument.Selection.Delete()
                'ActiveDocument.Selection = strBuildString
                Selection.Text = strBuildString
            End If
            iCount = iCount + 1
            If iCount > 100 Then    ' safety valve
                bDone = True
            End If
        End While
        'End If
    End Sub
    Function ParseString(ByVal strTemp, ByRef bFoundAQuote, _
                         ByRef strStuffAtEnd)
        Dim strSpace As String
        Dim iLen As Integer
        Dim iPos As Integer
        Dim x As Integer
        Dim strCheck As String
        Dim iUnderscoreTPos As Integer
        Dim strBeforeFirstQuote As String
        Dim strNewTempStr As String
        Dim strRemaining As String
        Dim strStuffInQuotes As String
 
 
        'DESCRIPTION: This is a helper function for the UnderscoreT macro,
        '             Author: Orin Walker, 1999, Version 1.1
        ' Comment in/out whatever style you prefer       
        strSpace = ""   ' NO space before or after "_T("
        'strSpace = " " ' Add a space before and after "_T("
        iLen = Len(strTemp)
        bFoundAQuote = False
        ' Get the position of the first quote on the line
        iPos = InStr(strTemp, Chr(34))
        If iPos > 0 Then    'a quote was found
            ' Go back and see if we have an existing 
            ' _T( defined for this quote
            x = iPos - 5          ' Go back up to 5 characters
            If x <= 0 Then      ' If we have reached the 
                ' beginning of our string
                x = 1           ' Set x to start at the first character
            End If
            strCheck = Mid(strTemp, x, iPos)
 
            iUnderscoreTPos = InStr(strCheck, "_T(")
 
            ' If we found one grab everything before the first quote
            strBeforeFirstQuote = Mid(strTemp, 1, iPos - 1)
            If iUnderscoreTPos > 0 Then     ' we found an "_T("
                ' Do NOT add the "_T(" to our temporary string
                strNewTempStr = strBeforeFirstQuote
            Else
                ' Now create our new temporary string and append "_T("
                strNewTempStr = strBeforeFirstQuote + "_T(" + strSpace
            End If
            ' Get the remaining string
            strRemaining = Mid(strTemp, iPos + 1, iLen)
 
            iLen = Len(strRemaining)
            ' Now find the second quote
            iPos = InStr(strRemaining, Chr(34))
 
            If iPos > 0 Then
                ' If we found one save the stuff in quotes
                strStuffInQuotes = Chr(34) + Mid(strRemaining, 1, iPos)
 
                ' And grab the stuff after the quotes
                strStuffAtEnd = Mid(strRemaining, iPos + 1, iLen)
 
                If iUnderscoreTPos > 0 Then     ' we found an _T(
                    ' Do NOT add the final ")" to our parsed string, 
                    ' because it alreasy exists
                    ParseString = strNewTempStr + strStuffInQuotes
                Else
                    ' Create our parsed string
                    ParseString = strNewTempStr + strStuffInQuotes + _
                        strSpace + ")"
                End If
                bFoundAQuote = True
            Else
                ' No SECOND quote was found so just return 
                ' what was passed in
                ParseString = strTemp
            End If
        Else
            ' No quote was found so just return what was passed in
            ParseString = strTemp
        End If
    End Function

http://acidpop.tistory.com/52 위 글에 올려놨던 _T 자동 입력 매크로이나 Visual c++ 6.0 에서만 작동하던 녀석을 Visual 2010 에서도 작동 하도록 변경해봤다.
사용 방법은 다음과 같다.

1. 위 소스를 복사
2. Visual Studio 에서 도구 → 매크로 → 매크로 편집
3. Visual Studio Macros 창이 뜨면 프로젝트 → 모듈 추가
   
   
4. 모듈을 선택 하고 이름은 AutoT 로 하자
5. 추가 하면 아래와 같은 코드가 만들어 지는것을 볼 수 있다.

   Imports System
   Imports EnvDTE
   Imports EnvDTE80
   Imports EnvDTE90
   Imports EnvDTE90a
   Imports EnvDTE100
   Imports System.Diagnostics
   Public Module AutoT
       ' 여기에 위에서 복사한 소스를 붙여넣기 하자
   End Module

6. 표시한 곳에 소스를 붙여넣기 한다.
7. 단축키로 등록하여 준다.
   도구 → 사용자 지정 → 키보드 버튼을 클릭하면 다음과 같은 창이 뜬다.
   
   
   단축키를 설정하려는 매크로 UnderscoreT 매크로를 선택 한 다음 바로 가기 키 누르기(P) 텍스트 박스에서 원하는 단축키를 누른다.
   필자는 Ctrl + Q 로 할당 하였다.
   텍스트 에디터에서만 사용을 할 것이므로 새 바로 가기 사용 위치는 전역 → 텍스트 편집기 로 바꿔준다.
   이제 “문자열” 형태로 된 코드에서 단축키를 눌러보자.
   _T(“문자열”) 형태로 변경 되는것을 볼 수 있다.
   
   

출처 : http://acidpop.tistory.com/94