Dim Path As String = Application.ExecutablePath
Path = System.IO.Path.GetDirectoryName(Path) & "\คู่มือการใช้งานระบบ.pdf"
Dim myProcess As System.Diagnostics.Process = New Process
myProcess.StartInfo.FileName = Path
myProcess.Start()
'Path = System.IO.Path.GetDirectoryName(Path) & "/document.pdf"
Dim Path As String = Application.StartupPath
Dim myProcess As System.Diagnostics.Process = New Process
myProcess.StartInfo.FileName = Path & "/document.pdf"
myProcess.Start()