How do I Simulate second cursor on windows?

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Windows

Win32

Visual-Studio

mouse

I have founds some resource dealing with the subject of attaining multiple cursors on windows for more than one mouse attached to the system. My requirement is a little simpler but I need some inputs on it.

1) What I want is to invoke an application (lets say IE) and do mouse activity(hovering , clicking etc) on it. All of this while there should be no disturbance to the system cursor , which should be free to be used by the user of the desktop.

2)I understand that this can not be done using the windows cursor apis as the documentation always mentions "the cursor" and there is no concept of multiple cursors inbuilt.

3)

- This leaves me to drawing a cursor on the target window. A bitmap perhaps and to move it randomly? What APIs will be of use here?
- How do I simulate the visual effects that are actually done my actual cursor movement. Do I need to send messages to the target
window like WM_MOUSEMOVE , WM_SETCURSOR etc.?
- Does sending mouse messages to the other window interfere with the mouse activities that the user is involved in currently? The
intention is not to disturb the user while the application runs.

Thanks for your inputs.