ActiveX Support Guide
Follows Microsoft "It Just Works" compatibility for ActiveX controls on Windows 7, 8, 10, 11, Window Servers 2008, 2012, 2016, 2019.
Due to changes in the Windows operating system and Microsoft's end of support, we can no longer fully support and provide maintenance builds of ActiveX controls.
You can download and license the latest version of ActiveX Edition from the C1ControlPanel application.
You can request a free meeting with a product manager to discuss support and migration options.
ComponentOne for ActiveX Key Features

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ComponentOne 2026 v1.1
New features

WinForms Migration Utility
- .NET Framework Project Migration Support : Automatically handles package and namespace changes, making it easy to update .NET Framework 4.8 applications to the latest version
WinForms Updates
- Key Control Quality Improvements : Feature enhancements and bug fixes across major controls including FlexChart, FlexGrid, FlexPivot, C1DateEdit, C1DateRangeEdit, and C1Ribbon
WPF · WinUI · MAUI · Blazor Shared Updates
- [FlexGrid] GridRow.AllowCustomCells Default Change : Default value changed to true to enable text-rendered cells by default in unbound GridRow scenarios
- Key Control Quality Improvements: Overall feature enhancements and bug fixes across controls
Data Services Updates
- IsTrimmable Attribute Added (.NET 7+): Supported across C1DataCollection and all data connectors, useful for optimizing standalone app size through the trimming process
ComponentOne for ActiveX Free Trial
ComponentOne for ActiveX Pricing and Licensing
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