Installing the Adobe PDF iFilter for Windows

If you need to perform any type of full-text indexing and searching on Adobe PDFs (such as with any document search engine such as Lucene or SharePoint), you will likely need the Adobe PDF iFilter which you can download from here: http://www.adobe.com/support/downloads/product.jsp?product=1&platform=Windows

In addition, you will need to follow these instructions on how to set up and configure the Adobe PDF iFilter for your Windows OS: http://www.adobe.com/devnet-docs/acrobatetk/tools/AdminGuide/Acrobat_Reader_IFilter_configuration.pdf

The installation of the Adobe PDF iFilter software is relatively simple and straightforward:

If you are interested in configuring the Adobe PDF iFilter for SharePoint, you should check out this Microsoft article: http://support.microsoft.com/kb/2293357

Silent installation of Adobe Flash Player on Windows

If you want to perform an unattended installation of Adobe Flash Player, then you need to get the appropriate distribution of Adobe Flash Player from here: http://www.adobe.com/sea/products/flashplayer/distribution3.html

Once you have downloaded the appropriate distribution for your platform, you can simply use the -install switch to silently install Adobe Flash Player as outlined in this article: http://helpx.adobe.com/flash-player/kb/silent-install-command-line-argument.html

Adobe Offline Installers

If you do not want to install Adobe Reader or any of the various Adobe applications via their online Web Installer, you can download their corresponding offline installers simply by using an FTP client such as FireFTP and connecting to ftp.adobe.com.  You can look in the pub directory for the various releases of their software products.

In addition, you can browse the directory structure for the Adobe Installer versions in the Firefox Web Browser as well.

For Adobe version 10.0, the Url is the following:
ftp://ftp.adobe.com/pub/adobe/reader/win/10.x

For previous and potential future versions of Adobe Reader, you can simply use the base Url:
ftp://ftp.adobe.com/pub/adobe/reader/win/

In addition, here are some direct links to the the Adobe Reader X Offline installers:
http://www.ghacks.net/2010/11/22/adobe-reader-x-offline-installers/