SkinCrafter skin does not applied

[Sara Tech]

Hi Guys .. :)
I hope you fine ....:icon_cool:
I need your help .. :)
I want to apply skin for vb.net 2010 project by using SkinCrafter tool.
here what I did ..:S
I added SkinCrafter to toolsbox ,after adding it I draged it to the main form ,adjusted "SkinCrafter1" properties skinFile then I added this code in main form load event .

Public Sub SpecialistLoginForm_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load
'SkinCrafter1.LoadSkinFromFile("C:\Program Files\SkinCrafter3\SkinCrafterDemo\Skins\Eclipse_net.skf")
        SkinCrafter1.ApplySkin()  
    End Sub

But But But ..I got this error :-/
Type 'DMSoft.SkinCrafter' is not defined.
another try I added "skincrafter_.net4.0_vs2010" as reference
but my problem did not resovle
:'(
plz help