Well am not sure how much useful this tool can be, but I just thought of building a basic Spell Checker tool that can run on any forms for string controls.
You can download the project from here:
On the form, you can select any string control and then press Ctrl + L for running the spell checker. If everything is fine, nothing will happen but in case there is an spelling mistake, you can see a form that pops up with suggestions to select.
Do try this out and let me any feedbacks/comments/improvements that you can think of.
This is pretty basic as of now, I will see how I can improve it much more.