Запустить программу и ждать завершения, не вешая основной программы

Private Type PROCESS_INFORMATION
   hProcess As Long
   hThread As Long
   dwProcessID As Long
   dwThreadID As Long
End Type
 
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 Declare Function CloseHandle Lib "kernel32" (ByVal hObject 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 WaitForSingleObject Lib "kernel32" (ByVal hHandle As Long, ByVal dwMilliseconds As Long) As Long
 
Private Const INFINITE = -1&
Private Const NORMAL_PRIORITY_CLASS = &H20&
 
Dim FileName As String
 
 
Public Sub RunFile(FileName)
   
   Dim Process As PROCESS_INFORMATION
   
   Dim Prog As STARTUPINFO
   
   Prog.cb = Len(Prog)
   
   CreateProcessA 0&, FileName, 0&, 0&, 1&, NORMAL_PRIORITY_CLASS, 0&, 0&, Prog, Process
   
   WaitForSingleObject Process.hProcess, INFINITE
   
   CloseHandle Process.hProcess
 
End Sub

'...58
If CreateProcessA(CreateProcessA 0&, FileName, 0&, 0&, 1&, NORMAL_PRIORITY_CLASS, 0&, 0&, Prog, Process) = 0 Then Unload Me: Exit Sub
CloseHandle Process.hThread
Do
    DoEvents
    'Здесь можно подвигать какой нибудь прогресс бар
Loop Until WaitForSingleObject(Process.hProcess, 20) = 0
'59...

If CreateProcessA(CreateProcessA 0&, FileName, 0&, 0&, 1&, NORMAL_PRIORITY_CLASS, 0&, 0&, Prog, Process) = 0 Then Unload Me: Exit Sub

If CreateProcessA(0&, FileName, 0&, 0&, 1&, NORMAL_PRIORITY_CLASS, 0&, 0&, Prog, Process) = 0 Then Unload Me: Exit Sub