AutoCAD VBA Migration to VB.NET or C#

AutoCAD 2010 will not be supporting VBA.


“If you utilize VBA macros in your work environment, they will no longer work unless the VBA module is installed on your system. “
“When you run a command that requires VBA, a message dialog box will be displayed stating that VBA is no longer installed with AutoCAD and directing you to a website where you can download the VBA module. “

And also you can see that Autodesk states: “Autodesk is evaluating how long VBA will be supported in Autodesk products in the future. Though supported in the AutoCAD 2010-based products, it may or may not be supported in future releases. Therefore, it is strongly recommended that VB developers develop all new code using VB .NET.

VBA does not support 64bit systems in a native way.

But If you want some advice from the VB migration experts or help on your migration project from VBA to VB.NET or C# you can us contact Artinsoft Migration Services.

We build the VB Upgrade Wizard that shipped with Visual Studio and have been doing VB migrations for years.

Scripting your applications in .NET

14. August 2008 16:48 by Mrojas in General  //  Tags: , , , , ,   //   Comments (0)

In VB6 it was very simple to add scripting capabilities to your application.
Just by using the Microsoft Script Control Library
You can still use this library in .NET just as Roy Osherove' Bloc show in

However there are some minor details that must be taken care of:

* Objects must be exposed thru COM (Add the [ComVisible(true)] attribute to the class
* Add the ComVisible(true) attribute to the AssemblyInfo file
* Make these objects public
* Recommended (put your calls to Eval or ExecuteStatement inside try-catch blocks).

And here's an example:

using System;
using System.Windows.Forms;
namespace ScriptingDotNetTest
    public partial class frmTestVBScript  : Form
        public int MyBackColor
            get { return System.Drawing.ColorTranslator.ToOle(this.BackColor); }
            set { this.BackColor = System.Drawing.ColorTranslator.FromOle(value); }
        MSScriptControl.ScriptControl sc = new MSScriptControl.ScriptControl();
        private void RunScript(Object eventSender, EventArgs eventArgs)
                sc.Language = "VbScript";
                sc.AddObject("myform", this, true);
                sc.ExecuteStatement("myform.MyBackColor = vbRed");
                MSScriptControl.IScriptControl iscriptControl = sc as MSScriptControl.IScriptControl;
                lblError.Text = "ERROR" + iscriptControl.Error.Description + " | Line of error: " + iscriptControl.Error.Line + " | Code error: " + iscriptControl.Error.Text;
        static void Main()
            Application.Run(new frmTestVBScript());

TIP: If you don find the reference in the COM tab, just browse to c:\windows\system32\msscript.ocx