hi every one

i wonder if someone can help me here
i'm programing in access with visual basic codes and i included a function of a dll in the module section
Public Declare Function GenerateLicenceID Lib "C:\Final\bin\vproc.dll" (ByVal sBaseID As String, ByVal duration As Integer, ByRef sLicenceID As String)

but when i call the function i get an error can't find entry of c:\Final\bin\vproc.dll
can someone help please