...
This should provide out put similar to the following:
Now add &mode=map to the end of the URL and you should get something similar to the following:
This has streamed a map directly back to the browser.
Now add &Layers=counties to the URL (be careful as MapServer is case sensitive)
Now try with Layers=all – all layers that can be seen should be shown.
If you add &mapext=426957+557404+445961+569855 you can now try changing the extent.
