InfoPath Dev

I have a question about managed and unmanaged code ...
When I enable browser compatability, I can't access to JScript and other unmanaged code, only C# and Visual Basic... It strange, because, as I know JScript was made for browsers... Can you explain it to me, or give me a link to documentation ? Thanks...

You can go from unmanaged to managed code without any issue. The problem is going from managed to unmanaged. This is a security issue. To accomplish this you would need to set your form to be full trust.

If your unmanaged code is in the task pane, you might be able to rework things in such a way that you only go from unmanaged to managed (i.e. from the task pane code to your main form code)--which would prevent the need from going to full trust.