in VS2017 C# ,I create x64 dll activex ,to debug it in IE F12 ,the object cann't load.

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vczxh

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Hi,

I create a 'hello world' dll x64 activex project using VS2017 C#,and create a html demo file.

if I open as IE load the html demo file,it worked well.

if I open as IE press F12(IE11 F12 Developer Tools) To debug the html demo file,it don't work.

os:Microsoft Windows [Version 10.0.18363.535] , win10 pro 64bit.



IE:



VS2017

vs2017 pro version 15.9.1



source code:









Class1.cs

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Runtime.InteropServices;
namespace ClassLibrary1
{
[ProgId("DemoClassLibrary1.HelloWorld")]
[ClassInterface(ClassInterfaceType.AutoDual)]
[Guid("731632A9-05F4-4B8E-A34E-BCA8168843B9")]
[ComVisible(true)]
public class Class1
{
[ComVisible(true)]
public String SayHello()
{
return "helloworld";
}
}
}
ClassLibrary1.csproj

<?xml version="1.0" encoding="utf-8"?>
<Project ToolsVersion="15.0" xmlns="/////////////////////">
<Import Project="$(MSBuildExtensionsPath)\$(MSBuildToolsVersion)\Microsoft.Common.props" Condition="Exists('$(MSBuildExtensionsPath)\$(MSBuildToolsVersion)\Microsoft.Common.props')" />
<PropertyGroup>
<Configuration Condition=" '$(Configuration)' == '' ">Debug</Configuration>
<Platform Condition=" '$(Platform)' == '' ">AnyCPU</Platform>
<ProjectGuid>{0D958562-8481-4A7F-8482-09EAED3B86C0}</ProjectGuid>
<OutputType>Library</OutputType>
<AppDesignerFolder>Properties</AppDesignerFolder>
<RootNamespace>ClassLibrary1</RootNamespace>
<AssemblyName>ClassLibrary1</AssemblyName>
<TargetFrameworkVersion>v4.6.1</TargetFrameworkVersion>
<FileAlignment>512</FileAlignment>
<Deterministic>true</Deterministic>
<TargetFrameworkProfile>
</TargetFrameworkProfile>
</PropertyGroup>
<PropertyGroup Condition=" '$(Configuration)|$(Platform)' == 'Debug|AnyCPU' ">
<DebugSymbols>true</DebugSymbols>
<DebugType>full</DebugType>
<Optimize>false</Optimize>
<OutputPath>bin\Debug\</OutputPath>
<DefineConstants>DEBUG;TRACE</DefineConstants>
<ErrorReport>prompt</ErrorReport>
<WarningLevel>4</WarningLevel>
<RegisterForComInterop>true</RegisterForComInterop>
<AllowUnsafeBlocks>false</AllowUnsafeBlocks>
<Prefer32Bit>false</Prefer32Bit>
<PlatformTarget>x64</PlatformTarget>
<FileAlignment>4096</FileAlignment>
</PropertyGroup>
<PropertyGroup Condition=" '$(Configuration)|$(Platform)' == 'Release|AnyCPU' ">
<DebugType>pdbonly</DebugType>
<Optimize>true</Optimize>
<OutputPath>bin\Release\</OutputPath>
<DefineConstants>TRACE</DefineConstants>
<ErrorReport>prompt</ErrorReport>
<WarningLevel>4</WarningLevel>
<Prefer32Bit>false</Prefer32Bit>
</PropertyGroup>
<PropertyGroup>
<SignAssembly>false</SignAssembly>
</PropertyGroup>
<PropertyGroup>
<AssemblyOriginatorKeyFile>miyao.pfx</AssemblyOriginatorKeyFile>
</PropertyGroup>
<ItemGroup>
<Reference Include="System" />
<Reference Include="System.Core" />
<Reference Include="System.Xml.Linq" />
<Reference Include="System.Data.DataSetExtensions" />
<Reference Include="Microsoft.CSharp" />
<Reference Include="System.Data" />
<Reference Include="System.Xml" />
</ItemGroup>
<ItemGroup>
<Compile Include="Class1.cs" />
<Compile Include="Properties\AssemblyInfo.cs" />
</ItemGroup>
<ItemGroup>
<None Include="miyao.pfx" />
</ItemGroup>
<Import Project="$(MSBuildToolsPath)\Microsoft.CSharp.targets" />
</Project>


new2.html

<!DOCTYPE>

<html>

<head>

<title>DemoCSharpActiveX webpage</title>

</head>

<body>
<button>1231123</button>
<OBJECT id="DemoActiveX" classid="clsid:731632A9-05F4-4B8E-A34E-BCA8168843B9"></OBJECT>



<script type="text/javascript">

try {
var obj = document.DemoActiveX
if (obj) {

alert(obj.SayHello());

} else {

alert("Object is not created!");

}

} catch (ex) {

alert("Some error happens, error message is: " + ex.Description);

}



</script>

</body>

</html>




register dll:

c:\Windows\Microsoft.NET\Framework64\v4.0.30319\regasm.exe /register /codebase "C:\Users\Dell\Desktop\ClassLibrary1\ClassLibrary1\bin\Debug\ClassLibrary1.dll"
register:

Windows Registry Editor Version 5.00

[HKEY_CURRENT_USER\Software\Microsoft\Internet Explorer\Main]
"TabProcGrowth"=dword:00000000

############################

result:

NOT Press F12:



Press F12 To Debug HTML Code:

steps:

1.Run IE

2.press F12

3.F12 Develop Tools says "Object doesn't support property or method 'SayHello'". it indecates that the activex Object load failed.




then I suspect this is Microsoft's bug. What do you think of the problem? If it's a problem with my code, how do I fix it?

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