i figured it out i just put in
Private Declare Function ShellExecute Lib "shell32.dll" Alias "ShellExecuteA" (ByVal hwnd As Long, ByVal lpOperation As String, ByVal lpFile As String, ByVal lpParameters As String, ByVal lpDirectory As String, ByVal nShowCmd As Long) As Long
Private Const SW_SHOWNORMAL = 1
ShellExecute Me.hwnd, vbNullString, "helpfile.CHM", vbNullString, App.Path, SW_SHOWNORMAL
and now it works