Found this excellent post by Darrell Norton in which he describes a way to make Adobe Acrobat 6 load up faster. In my opinion, all of the Adobe products take entirely too long to start, so I was happy to come across this post. One thing to note, Darrell gives the directory as:
C:\Program Files\Adobe\Acrobat 6.0\Reader
which works fine if you have just the reader, but if you have the full version of Acrobat, the path is:
C:\Program Files\Adobe\Acrobat 6.0\Acrobat
unless of course you have both installed. Good luck!