Controls are automatically added to Visual Studio's Toolbox (up to Visual Studio 2015), except for Express Editions of Visual Studio.
To add a control to your Toolbox, follow these simple steps:
Open a form in your project in design view. Right-click anywhere on the Toolbox and select "Add Tab" from the popup menu.
This creates a new tab for the control to be added.
To complete the new tab, enter a suitable tab label. In this example, we enter "Softel vdm, Inc." and press Return.
Once the tab has been added, we are ready to add controls to it.
Right-click on the area below the tab heading and select "Choose Items..." from the popup menu.
This will present the Choose Toolbox Items dialog, which is used to locate the assembly for the control you want to add.
All controls published by us are located in a product specific subdirectory located at C:\Program Files\Softelvdm\<i>productname</i>\Bin or C:\Program Files (x86)\Softelvdm\<i>productname</i>\Bin (substitute the actual product name).
Locate the assembly and click accept. In this example, the assembly for SftTree/NET 2.0 is added.
This will return you to the Choose Toolbox Items dialog which now shows the newly added assembly.
Finally, click OK and the control now appears in your Toolbox.