Shared Function _    SearchPath(ByVal tartPath As String, ByVal fileName As String, _    ByVal extension As String, ByVal bufferLength As Integer, _    ByVal buffer As System.Text.StringBuilder, ByVal filePart As String) As _    IntegerEnd Function' Searches a file on the system' Returns the complete file path+name, or "" if file not found'' If searchDirs is omitted, then the file is searched' in the following directories, in this order'   1. the directory from where the app loaded'   2. the current directory'   3. the WindowsSystem32 directory (if under WinNT)'   4. the WindowsSystem directory'   5. the Windows directory'   6. the directories listed in the PATH environment variable'' Example: Debug.WriteLine(SearchFileOnPath("TestApp.exe"))Function SearchFileOnPath(ByVal fileName As String, Optional ByVal searchDirs _    As String = "") As String    Dim buffer As New System.Text.StringBuilder(260)    SearchPath(searchDirs, fileName, Nothing, buffer.Capacity, buffer, Nothing)    Return buffer.ToString()End Function