VB.net "Imports statement is unnecessary" but Soli

Hi all, I'm trying to made a Vb.net code that should import an model and update some equation dimensions.

This is the first time i'm using VS with SW api. So i really can't understand what I'm doing wrong .

I have added "SldWorks.dll" and "SwConst.dll" to the project references, then i added the code :

Imports SolidWorks.Interop.sldworks

Imports SolidWorks.Interop.swconst

(here i also tried with "Imports SldWorks instead SolidWorks, but nothing)

VS is getting and warning saying me that the imports are unnecessary, so i tryied to continue by starting Solidworks and open a part with this code :

Function ModelParts()

Dim Part As SldWorks.IModelDoc2

Dim swEquationMgr As SldWorks.EquationMgr

Dim Options As Integer

Dim Errors As Integer

Dim Warnings As Integer

Dim longEquation As Long

Dim boolstatus As Boolean = False

Dim longstatus As Integer = 0

Dim longwarning As Integer = 0

Dim app As String = ""

SwApp = CreateObject("SldWorks.Application")

SwApp = New SldWorks.SldWorks()

Part = SwApp.OpenDoc6(WorkPath & "\test.sldprt", 1, 0, "", longstatus, longwarning)

swEquationMgr = Part.GetEquationMgr

If swEquationMgr Is Nothing Then ErrorMsg(SwApp, "Failed to get the equation manager of file " & "test.sldprt")

STOP

longEquation = swEquationMgr.SetEquationAndConfigurationOption(0, """A""=1000", SwConst.swInConfigurationOpts_e.swAllConfiguration, Nothing)

swEquationMgr.EvaluateAll()

Part.EditRebuild3()

boolstatus = Part.Save3(Options, Errors, Warnings)

If longEquation <> 1 Then ErrorMsg(SwApp, "Failed to modify the dimension " & "A")

SwApp.ExitApp

SwApp = Nothing

Return 1

End Function

When i reach program break at "Stop", i still don't have Solidworks opened, but if i check on Task manager, I can see it running on processes list.

Can someone help please, I really can't uderstand what's the problem. For now seems a problem with the references.

If need more info : I'm using Solidworks 2016 - Visual Studio 2010 (Net Framework 4.5.2).