Changes
updated version number warning verbiage, and added a (commented) dependency on Microsoft Office to avoid an installation-ordering problem
You should obtain security updates and patches from http://www.adobe.com/support/downloads/product.jsp?product=1&platform=Windows or from http://www.adobe.com/support/security/index.html
Note that for 9.3.4 & 9.4.0, patches don't always bump the version number of in the main Acrobat.exe did not change. We have to check and Acrobat.dll files. It's important to figure out which files a particular patch touches and to check their version numbers; otherwise, patches apply and request a reboot but the check conditions won't be satisfied, leading to avoid constant reboots and patch failures.
<source lang="xml">
reboot="false"
priority="1">
<!-- Uncomment and edit the following to make sure Acrobat is installed after Microsoft Office. Otherwise, Adobe add-ins for Office won't be installed. -->
<!-- <depends package-id="msoffice2007" /> -->
<check type="uninstall" condition="exists" path="Adobe Acrobat 9 Pro" />