How to register a COM DLL from a Windows application using vb.net in windows 7

Friday, 22 August 2014

How to register a COM DLL from a Windows application using vb.net in windows 7

 How to register a COM DLL from a Windows application using vb.net in windows 7


At first build a windows application and take a button known as buton1 and on clicking the write the following code :

Private Sub Button1_Click(sender As Object, e As EventArgs) Handles Button2.Click
        Registar_Dlls("Full Path Of the com Dll")
    End Sub

Now this is the main function which will register the com dll file given below

 Public Shared Sub Registar_Dlls(filePath As String)
        Try
            ''/s' : Specifies regsvr32 to run silently and to not display any message boxes.
            Dim arg_fileinfo As String = """" & filePath & """"
            Dim reg As New Process()
            'This file registers .dll files as command components in the registry.
            reg.StartInfo.FileName = "regsvr32.exe"
            reg.StartInfo.Arguments = arg_fileinfo
            reg.StartInfo.UseShellExecute = False
            reg.StartInfo.CreateNoWindow = True
            reg.StartInfo.RedirectStandardOutput = True
            reg.Start()
            reg.WaitForExit()
            reg.Close()
        Catch ex As Exception
            MessageBox.Show(ex.Message)
        End Try
    End Sub

Now to register a com dll you have to run the created exe as administrator forcefully by coding .So to do this we have add a app.manifast  file to our project and have to write the following code :

<?xml version="1.0" encoding="utf-8"?>

<asmv1:assembly manifestVersion="1.0" xmlns="urn:schemas-microsoft-com:asm.v1" xmlns:asmv1="urn:schemas-microsoft-com:asm.v1" xmlns:asmv2="urn:schemas-microsoft-com:asm.v2" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance">
  <assemblyIdentity version="1.0.0.0" name="MyApplication.app"/>
  <trustInfo xmlns="urn:schemas-microsoft-com:asm.v2">
    <security>
      <requestedPrivileges xmlns="urn:schemas-microsoft-com:asm.v3">
        <requestedExecutionLevel  level="requireAdministrator" uiAccess="false" />
      </requestedPrivileges>
    </security>
  </trustInfo>
</asmv1:assembly>