Active X control error"Automation server can't create object"

hi friends,

My task is to "Write ActiveX Control for fetching MACID of client machine."

I'm new to this active X controls.I created a dll by choosing projects->class library

and created a dll.The code is as follows:

using System;

using System.Runtime.InteropServices;

namespace DimensionsClientsSystemInfo

{

public interface ASignatures

{

string MacID();

string ComputerName();

string IPAddress();

}

[ClassInterface(ClassInterfaceType.AutoDual)]

public class AClass : ASignatures

{

public string MacID()

{

return "xxx0001";

}

public string ComputerName()

{

return "DimensionsLiveO";

}

public string IPAddress()

{

return "124.125.133.74";

}

my next step was to implement this dll in a web application using javascript.

For this I tried the following code:

<%@ Page Language="C#" AutoEventWireup="true" CodeFile="Default.aspx.cs" Inherits="_Default" %>

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">

classid="Bin/DimensionsClientsSystemInfo.dll">

</object>

<title>ActiveX</title>

var x = new ActiveXObject("AClass.dll");

alert(x.MacID());

</script>

</head>

<body>

<div>

<asp:Label ID="Label1" runat="server" Text="Label"></asp:Label></div>

</form>

</body>

</html>

but when running javascript error:"Automation Server can't create an object" results.

is there any mistake in my code.I think my dll is working but error is in the aspx file.

can anyone help me.

I used the reference:http://dotnetslackers.com/articles/csharp/WritingAnActiveXControlInCSharp.aspx

dim505

Re: Active X control error"Automation server can't create object"

Did you copy the assembly and also the type library for the assembly (created via tlb.exe) on to the target machine?

Re: Active X control error"Automation server can't create object"

yes,but I get the same error

I altered the settings of IE.

"Tools > Internet options > Security > Custom Level

Under the ActiveX controls and plug-ins, select Enable for Initializing and Script ActiveX controls not marked as safe. "

executed the command

csc /t:library Myclass.cs

regasm mydll.dll /tlb /codebase

REGSVR32 SHIMGVW.DLL

but gets the same error.pls help me??????

Re: Active X control error"Automation server can't create object"

That 's the way I call activex on my box and it works well,

<html>
<head>
  <script language="javascript">
    <!-- Load the ActiveX object  -->
    var x = new ActiveXObject("DimensionsClientsSystemInfo.AClass");


    <!-- Access the Method -->
    alert(x.MacID());




  </script>
</head>
<body>
</body>
</html>

Hope the above information helps

Re: Active X control error"Automation server can't create object"

finally I got the script running.

for that executed the commands regasm path/mydll.dll

regasm path/mydll.dll/tlb

gacutil mydll.dll

and when executed the web application I got the alert.

alert(x.MacID());

    var XLApp = new ActiveXObject("Word.Application");

   alert(XLApp.Version);

</script>

all works fine but when I published the web application and executed it from the server,the same error repeats

"Automation server can' create object"

should I alter any another settings???

pls help.....

dim505

Re: Active X control error"Automation server can't create object"

One approch is copy the dll to each client machine and register using regasm.exe, then you will not receive create object error

(See quotes from http://dotnetslackers.com/articles/csharp/WritingAnActiveXControlInCSharp.aspx

You can register the assembly in multiple ways of implementation and it mostly depends on the target users. For example, creating a setup file for download or having a self extractor file which could prompt in the browser, )

Another way is use COM class factory for component with CLSID ----e.g: {0006FB3A-0000-0000-C100-000001000046}, let the client browser to download the control for install

For more information, please view my post in this thread

http://forums.asp.net/p/1192196/2059612.aspx#2059612

Re: Active X control error"Automation server can't create object"

Dear All,

In the above example client is required dotnet framework where as in my context, it is not possible.

I want to write a activex control to fetch mac id of client in the web application without dotnet framework requirement at client side.

With Regards

Palanivelrajan

Re: Active X control error"Automation server can't create object"

I had the similar error when creating scripting.filesystem object and got fixed by running regsvr32 scrrun.dll