Before downloading and installing the Power Packs, ensure your development or runtime environment meets these base criteria.
Microsoft has officially discontinued active maintenance and removed direct download links from the main Microsoft Download Center. However, there are still ways to obtain and use the library: Microsoft Visual Basic Power Packs Version 9.0.0.0 Download
If you are maintaining an application for long-term production, migrating away from Power Packs 9.0.0.0 is highly recommended. Modern frameworks offer built-in, supported alternatives to these legacy components. Legacy Power Pack Control Modern Alternative Technology Framework GDI+ Graphics Object Drawing ( OnPaint event) Windows Forms (.NET 8+) LineShape / OvalShape Native Shape Elements ( , ) WPF / MAUI DataRepeater FlowLayoutPanel or DataGridView Windows Forms (.NET 8+) PrintForm Component PrintDocument Class with custom print logic .NET Standard / Core Before downloading and installing the Power Packs, ensure
The application requires that assembly Microsoft.VisualBasic.PowerPacks.Vs, Version=9.0.0.0, PublicKeyToken=b03f57f11d50a3a be installed in the Global Assembly Cache (GAC) first. but 9.0 doesn't?
| | Likely Cause | Suggested Solution(s) | | :------------------------------------------------------------------------------------------------------------------------------------- | :------------------------------------------------------------------------------------------------------------------------------------------------------------------------------ | :---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- | | Missing PowerPacks Types (e.g., "ShapeContainer" not defined") | The application is missing a reference to the Microsoft.VisualBasic.PowerPacks.Vs.dll assembly. | 1. Download and install the Power Packs via the NuGet package ( VisualBasic.PowerPacks.Vs ). 2. Download the installer from a reliable source and reinstall it. 3. Manually add a reference to the DLL from its installation directory. | | PowerPacks Controls Missing from the Toolbox | The assembly is not registered or selected in the Visual Studio Toolbox. | Follow the "Toolbox Integration" steps to manually add the controls via the "Choose Items" dialog. | | ClickOnce Deployment Fails, Requiring Power Packs | The Power Packs were not included as a prerequisite during the application's publishing process. | Include "Microsoft Visual Basic PowerPacks 10.0" as a prerequisite in the Publish tab of your project's properties. | | Application Works Locally but Fails on a Client Machine | The client machine lacks the necessary Power Packs runtime components. | Ensure the Power Packs are installed on the client machine or included in your application's installer/deployment package. If using ClickOnce, make sure the prerequisite is correctly configured. | | "Could not load file or assembly 'Microsoft.VisualBasic.PowerPacks.Vs' or one of its dependencies" | The required assembly is missing, the wrong version is referenced, or it's not in the application's probing path or the Global Assembly Cache (GAC). | Check the project's references to ensure the correct version (10.0.0.0) is used. Reinstall the Power Packs or re-add the reference to the correct DLL file. | | Controls Function at Runtime, but not Design-Time in VS 2022 | Modern IDEs like Visual Studio 2022 do not provide design-time support for these legacy controls. | This is an expected limitation. Development must be done by manually writing and configuring the controls in code. For maintenance, it is often easier to keep a copy of Visual Studio 2019 or an older version for editing forms. | | PowerPacks 3.0 works, but 9.0 doesn't? | Different versions of the Power Packs have varying levels of compatibility with newer .NET frameworks and Visual Studio versions. | PowerPacks 3.0 has been reported to work in some newer environments, but version 9.0 (PowerPacks 10) is generally considered the last stable release for .NET Framework 4.x. Always test thoroughly when using any version beyond its support lifecycle. |
“Type 'Microsoft.VisualBasic.PowerPacks.LineShape' is not defined.” How to Download and Install Version 9.0.0.0
However, the "story" continues for modern developers who still find themselves needing it: Legacy Maintenance