FYI:
I figured out that I cannot use the standard Open call to open the PDF document.
The code below will open a PDF document.


Alvin


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_NORMAL = 1

Private Sub Command1_Click()
ShellExecute 0&, "Open", "c:\pdffile.pdf", vbNullString, vbNullString, SW_NORMAL
End Sub