File list (Check if you may need any files):
DemoApp\bin
.......\...\Debug
.......\...\.....\CheckBoxComboBox.dll
.......\...\.....\DemoApp.exe
.......\...\.....\DemoApp.vshost.exe.manifest
.......\DataTableWrappers.cs
.......\DemoApp.csproj
.......\Form1.cs
.......\Form1.Designer.cs
.......\Form1.resx
.......\Program.cs
.......\Properties
.......\..........\AssemblyInfo.cs
.......\..........\Resources.Designer.cs
.......\..........\Resources.resx
.......\..........\Settings.Designer.cs
.......\..........\Settings.settings
.......\Statusses.cs
DemoApp
CheckBoxComboBox.sln
................\bin
................\...\Debug
................\...\.....\CheckBoxComboBox.dll
................\CheckBoxComboBox.cs
................\CheckBoxComboBox.csproj
................\CheckBoxComboBox.csproj.user
................\CheckBoxComboBox.Designer.cs
................\GripBounds.cs
................\NativeMethods.cs
................\Popup.cs
................\Popup.Designer.cs
................\PopupComboBox.cs
................\PopupComboBox.Designer.cs
................\PopupComboBox.resx
................\Properties
................\..........\AssemblyInfo.cs
................\Selection Wrappers
................\..................\ListSelectionWrapper.cs
................\..................\ObjectSelectionWrapper.cs
CheckBoxComboBox
CheckBoxComboBox.jpg