Can someone help me make a .bat file?

Not sure why you want to do that, but wouldn't it be simpler to just drag the taskbar where you want it. Also, just to be clear, do you want to change your main screen from portrait to landscape? I am not sure that function is built into windows 7 OS, if it is, show me. Then I might be able to write a vb script that does that for you. It might also be built into the video card's control panel. If is a builtin function in the OS, then the script might be possible, if it builtin to the card's control panel, then no.

I would think that your netbook would have settings to that effect - my Tablet PC does - I can set the orientation to face either way when it is rotated into tablet mode, and with a bit of work I should be able to force the taskbar on the other edge, methinks....

I assume this is only available on netbooks\ tablet pc. I do not see that option on my desktop.

I believe the first post here (under multi-monitor support) has your answer.

EDIT: Just right click on the desktop, and make a new notepad file. Name it whatever you want and copy and paste what's written in that guy's post. Find where he has the numbers for the resolution and change them to whatever you would like your resolution set at (length x width). Choose "save as" when your done and keep the same title with .bat at the end, but before you save it, choose to save it as "all files" instead of ".txt".

I looked at that post, it addresses resolution, but not orientation. It is still a good script to have, but the OP wants something to change his orientation. I do not seem to have that feature on my desktop. Once again, I assume it is only available on tablet \laptops. Do any of you guys have that option on your desktop?

Try this tool.
EnTech Taiwan | Utilities | iRotate