JotForm is a free online form builder which helps you create online forms without writing a single line of code. No sign-up required.
We believe that if one user has a question, there could be more users who may have the same question. This is why many of our support forum threads are public and available to be searched and viewed. If you’d like help immediately, feel free to search for a similar question, or submit your question or concern.
Unfortunately, you can't add standalone exe file to your form; but by using the "Embed Flash" Widget, you can add Flash SWF based applications and load them real time.
Also, you can check the tutorial about how to add widget to your form from the link below:
If you need any extra information, please let us know.