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MSSOAPLib30 on Visual Studio 2022 x64

Esteban Benito 1 Reputation point
2022-08-26T10:12:06.847+00:00

Hello, I have a problem with the Microsoft Soap Type Library 3.0 component (Interop.MSSOAPLib30) when I run my project in Visual Studio 2022 debug (version x64):

System.Runtime.InteropServices.COMException
HResult=0x80040154
Message = Failed to retrieve COM class factory for component with CLSID {0AF40C53-9257-11D5-87EA-00B0D0BE6479} due to the following error: 80040154 Class not registered (Exception from HRESULT: 0x80040154 (REGDB_E_CLASSNOTREG)).
Source = ApplicationBase
Stack trace:
in ApplicationBase.Sms..ctor() in C:\PROJECTS[path]\Web\Sms.aspx.vb: line 25
in ASP.sms_aspx..ctor()
at __ASP.FastObjectFactory_app_web_r4ghdz5j.Create_ASP_sms_aspx()

235090-image.png

235172-image.png

The same project if I open it in Visual Studio 2019 (version x32) if it works fine.

I have looked for information before writing, it seems that SOAP is obsolete, but I have not seen how to migrate a project that uses the HttpConnector30, SoapReader30 and SoapSerializer30 methods to something else, since the Web Service I connect to is external and I have no possibility to migrate it to a rest API.

Does anyone have any solution for this problem?

Thank you very much, regards

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  1. Lan Huang-MSFT 27,476 Reputation points Microsoft Vendor
    2022-08-29T03:32:34.16+00:00

    Hi @Esteban Benito ,

    The same project if I open it in Visual Studio 2019 (version x32) if it works fine.

    You can try changing your project to x32 in Visual Studio 2022.
    【Right-click the .NET project, and choose Properties-->Select the Build tab-->Set Platform target 】 or run regsvr32.exe.
    235597-image.png
    Note: The MSSOAPLib30 library is home to the SOAP Toolkit 3.0 Toolkit, which is obsolete and no longer supported.
    You can check out the documentation below or use SoapUI:
    Migrate from SOAP Toolkit to Web services
    https://learn.microsoft.com/en-us/previous-versions/dotnet/articles/ms973876(v=msdn.10)?redirectedfrom=MSDN
    Data Transfer and Serialization
    https://learn.microsoft.com/en-us/dotnet/framework/wcf/feature-details/data-transfer-and-serialization
    Best regards,
    Lan Huang

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  2. Esteban Benito 1 Reputation point
    2022-09-05T08:30:19.463+00:00

    Hello Lan huang,

    Thank you very much for her response; Sorry I couldn't reply earlier.

    I just tried your solution, but it doesn't work in my case. The "prefer 32-bit" option is disabled in my project, and I see how to enable it.

    237765-anycpu-no32bits.png

    I have tried to compile in 32 bits, instead of in AnyCPU; but that generates a new error; I understand that I have 64-bit specific references, and I don't want to lose them.

    237755-cpux86.png

    237739-errorx86.png

    Thanks for the links; but the web service is not mine; so I can not migrate it to another technology; I must consume it with SOAP, even though it is deprecated.

    Any more ideas of something to try?

    Thank you very much, regards
    Esteban