During November 2024, Daniel Jaschob refactored the file dialog subsystem in the ProteoWizard/pwiz repository, focusing on structural improvements to support future user-facing features. He reorganized the dialog hierarchy by renaming OpenDataSourceDialog to BaseFileDialogNE and introduced stub classes for OpenFileDialogNE and OpenDataSourceDialog, laying groundwork for incremental development. By moving the Open() method to OpenFileDialogNE, Daniel enabled greater modularity and subclass customization. His work emphasized code organization, object-oriented design, and refactoring within a Windows Forms and C# environment. The changes improved maintainability and testability, though the scope was limited to foundational architecture rather than immediate user functionality.