Imports Microsoft.Win32
Public Class MainClass
Public Function GetAssociatedProgram(ByVal FileExtension As String) As String
Dim objExtReg As Microsoft.Win32.RegistryKey = Microsoft.Win32.Registry.ClassesRoot
Dim objAppReg As Microsoft.Win32.RegistryKey = Microsoft.Win32.Registry.ClassesRoot
Dim strExtValue As String
Try
If FileExtension.Substring(0, 1) <> "." Then FileExtension = "." & FileExtension
objExtReg = objExtReg.OpenSubKey(FileExtension.Trim)
strExtValue = objExtReg.GetValue("")
objAppReg = objAppReg.OpenSubKey(strExtValue & "\shell\open\command")
Dim SplitArray() As String
SplitArray = Split(objAppReg.GetValue(Nothing), """")
If SplitArray(0).Trim.Length > 0 Then
Return SplitArray(0).Replace("%1", "")
Else
Return SplitArray(1).Replace("%1", "")
End If
Catch
Return ""
End Try
End Function
End Class