Yes CTRL-F6 is the "Next Window" command in Word, unlike in most programs where CTRL-TAB does the trick. However you CAN make Word use CTRL-TAB to switch windows. I'm on Win7 with Word 2010, so if you're using something else YMMV.
If you don't already have 7Zip (or some other archive program which will allow you to edit a file within an archive), then get it.
Close Word before you begin
Find your "Normal.dotm" document - for me it was in /users/yourname/appdata/roaming/microsoft/templates.
Right click on the file, go to 7Zip --> Open Archive.
In 7Zip, double-click the "word" folder
Right-click on the "customizations.xml" file and choose "Edit"
Look for the <wne:keymaps>
tag.
If it IS NOT there, then paste this before the <wne:toolbars>
tag:
<wne:keymaps><wne:keymap wne:kcmPrimary="0209"><wne:fci wne:fciName="NextWindow" /></wne:keymap></wne:keymaps>
- If it IS there, then paste this after the
<wne:keymaps>
tag:
<wne:keymap wne:kcmPrimary="0209"><wne:fci wne:fciName="NextWindow" /></wne:keymap>
Save and close the document.
7Zip will prompt you to update the archive, choose Yes.
Close 7Zip.
Open a few documents in Word, and gleefully switch between them with CTRL-TAB!
I'm running on Windows XP here, with two documents open in Word 2010. Alt+Tab works as expected - since each document opens in a new window, and Alt+Tab switches between windows. Both Ctrl+F6 and View-> Switch Windows appear to work as well. I'm not sure how much this helps but wanted to note that Alt+Tab isn't explicitly missing from Word 2010. – Warrior Bob – 2011-05-13T15:53:33.283