Hi, Gautam,
1. Renaming normal.dot has no effect on any add-ins. Going back to
your original post, though, running "winword /a" starts Word without
loading normal.dot *and* without any add-ins. If you're
troubleshooting a problem that may be caused by either normal.dot or
an add-in, the /a switch won't tell you where the cause is -- just
that it is or isn't one of those.
2. If you uninstall/reinstall Word, you *may* remove some entries in
the registry that connect one or more add-ins to Word. Although those
add-ins won't function, they aren't exactly uninstalled, just
"unhooked". Other add-ins may survive intact. It depends on how they
connect to Word.
3. In most cases, uninstalling Word has no effect on normal.dot. This
is because the installer never uninstalls files that are newer than
the ones that it originally installed, and normal.dot gets updated
frequently. On the reinstall, the installer notices that normal.dot is
already in place, and doesn't overwrite it. This is "as designed", on
the assumption that anything that's newer than the original
installation contains information you want to keep.
This fact explains why there are dozens of posts in these newsgroups
daily, saying "I uninstalled and reinstalled, and it didn't help." It
almost never helps -- because it doesn't touch the cause of the
problem.
A new normal.dot will be created in exactly one circumstance: When you
start the Word program and there is no normal.dot file in existence.
This could be because (a) you renamed the old one, (b) you deleted the
old one, (c) you uninstalled Word before you made any customizations
that could be stored in normal.dot, or (d) you uninstalled Word and
then specifically deleted the contents of the Templates folder before
reinstalling.