Control actions through buttons outside unity player

Hi all,
I am new to unity and have some questions.

1- we can create buttons in unity which can do different actions. Now these buttons is inside unity player. My question is can we perform those actions from simple HTML buttons outside unity player?

2- Is it possible to install unity player even as I do not have Administrator right?

3- We do scripting inside unity3d but when we export it to web-player, output is one solid .unity3d file with html. Is there a way to access those scripting files?

Thanks in advanceā€¦

  1. Yes, see
  2. Yes.
  3. The scripts are inside the unity3d file. The unity run time can access them.