If you use Acrobat Reader 6 (AR6) for reading PDF file only, you can make it lite & run fastest without using any tweaking software. Below is my method: 1. Create folder named AcrobatReader 6 (or what you like) 2. Setup AR6 normally then go to folder: Program Files\Adobe\Acrobat 6.0\ 3. Copy only 2 folders: Reader & Resource to folder AcrobatReader 6. (Should keep the folder Resource because some file PDF need fonts). Now you can remove AR6 & go to folder AcrobatReader 6\Reader. Pls keep only those files & Folders: - AcroRd32.exe - Ace.dll - Agm.dll - Bib.dll - CoolType.dll - JP2KLib.dll - OPP.dll - Folder SPPlugins (this folder contains files necessary for displaying menu bar of AR6) - Folder plug_ins: keep only 3 plugins in this folder: + reflow.api: Reflows the contents of a page to fit the width of the window. + Search.api: The Search plug-in serves as a backend for providing search services. It also loads indexes for special documents that contain the AutoIndex key. + Search5.api: The Search5 plug-in serves as a backend for providing services to search indexes created by earlier versions of Catalog. 4. Delete all another files & Folders which are not listed above. Now you can put back the folder Acrobat Reader 6 to %system drive%\Program Files. (or you can keep that folder on other place) Then open notepad, copy & paste these: Save it with extension “*.reg" then import to registry. From now then on, you no need to setup Acrobat again, only use reg file to regiter it . (Notice that the reg file above for my relative path: %systemdrive%\Program Files\AcrobatReader 6. If your folder AcrobatReader 6 located on other place, you must change to absolute path.) You also put folder AcrobatReader 6 to your CDXPUnattendedSetup's folder: OEM$\$Progs\ And add above regkey to your regtweaks.reg The size of folder AcrobatReader 6 is only: 14,1MB (the AdbeRdr_full_enu.exe ~ 16MB & after setting up, the folder Adobe ~ 47MB) You can download & try AR6 version 6.0.1 repacked by me. The file setup AR6.exe only 7,7MB. It runs & works on all Windows 9X/Me/2K/XP. You also setup in silent mode with switch “/s" (ex.: AR6.exe /s) http://viet-guitar.com/diendan/index.php?a...e=post&id=21956