I have a VB6 EXE that I use to build VS.NET 2003 projects.  It works fine
when building a .NET Class Library, but it doesn't return when it kicks off a
build of a Setup & Deployment project.

To reproduce, using VS.NET 2003, just create 2 projects - a C# Class Library
and a Setup & Deployment project.  Then edit the code in the Form_Load of the
following VB6 code to point to the projects you created.  Notice the S&D
project builds, but devenv.exe never exits so the VB6 app doesn't finish.

Tim

Option Explicit

Private Type STARTUPINFO
  cb As Long
  lpReserved As String
  lpDesktop As String
  lpTitle As String
  dwX As Long
  dwY As Long
  dwXSize As Long
  dwYSize As Long
  dwXCountChars As Long
  dwYCountChars As Long
  dwFillAttribute As Long
  dwFlags As Long
  wShowWindow As Integer
  cbReserved2 As Integer
  lpReserved2 As Long
  hStdInput As Long
  hStdOutput As Long
  hStdError As Long
End Type

Private Type PROCESS_INFORMATION
  hProcess As Long
  hThread As Long
  dwProcessID As Long
  dwThreadID As Long
End Type

Private Declare Function WaitForSingleObject Lib "kernel32" (ByVal _
  hHandle As Long, ByVal dwMilliseconds As Long) As Long

Private Declare Function CreateProcessA Lib "kernel32" (ByVal _
  lpApplicationName As Long, ByVal lpCommandLine As String, ByVal _
  lpProcessAttributes As Long, ByVal lpThreadAttributes As Long, _
  ByVal bInheritHandles As Long, ByVal dwCreationFlags As Long, _
  ByVal lpEnvironment As Long, ByVal lpCurrentDirectory As Long, _
  lpStartupInfo As STARTUPINFO, lpProcessInformation As _
  PROCESS_INFORMATION) As Long

Private Declare Function CloseHandle Lib "kernel32" _
  (ByVal hObject As Long) As Long

Private Declare Function GetExitCodeProcess Lib "kernel32" _
  (ByVal hProcess As Long, lpExitCode As Long) As Long

Private Const NORMAL_PRIORITY_CLASS = &H20&
Private Const INFINITE = -1&

Public Function ExecCmd(strCmdLine As String)
  Dim proc As PROCESS_INFORMATION
  Dim start As STARTUPINFO

  ' Initialize the STARTUPINFO structure:
  start.cb = Len(start)
 
  Dim strapp As String
  strapp = "cmd.exe"

  ' Start the shelled application:
  Dim ret As Long
  ret& = CreateProcessA(0&, strCmdLine, 0&, 0&, 1&, _
     NORMAL_PRIORITY_CLASS, 0&, 0&, start, proc)

  ' Wait for the shelled application to finish:
     ret& = WaitForSingleObject(proc.hProcess, INFINITE)
     Call GetExitCodeProcess(proc.hProcess, ret&)
     Call CloseHandle(proc.hThread)
     Call CloseHandle(proc.hProcess)
     ExecCmd = ret&
End Function

Private Sub Form_Load()
   ExecCmd """C:\Program Files\Microsoft Visual Studio .NET
2003\Common7\IDE\devenv"" ""X:\AAA\ClassLibrary1\ClassLibrary1.sln"" /nologo
/rebuild ""Release"" /out ""X:\AAA\ClassLibrary1\BuildLog.txt"""
   ExecCmd """C:\Program Files\Microsoft Visual Studio .NET
2003\Common7\IDE\devenv"" ""X:\AAA\Setup1\Setup1.sln"" /nologo /rebuild
""Release"" /out ""X:\AAA\Setup1\BuildLog.txt"""
End Sub