Some folks over at the Adobe forum note that you can get the Reader 9 installer sans Adobe.com and Adobe Air
HERE. Download the AdbeRdr90_en_US_Std.exe installer. Here's my AutoIt script to install unattendedly, arrange icons, get rid of the EULA nag, and remove "speed launcher" from Run:
CODE
RunWait ( @ScriptDir & '\AdbeRdr90_en_US_Std.exe /sPB /rs')
FileDelete( @ProgramsCommonDir & "\Adobe Reader*.lnk")
FileDelete( @DesktopCommonDir & "\Adobe Reader*.lnk")
FileCreateShortcut(@ProgramFilesDir & "\Adobe\Reader 9.0\Reader\AcroRd32.exe", @ProgramsCommonDir & "\Accessories\Adobe Reader 9.lnk")
RegWrite('HKEY_CURRENT_USER\Software\Adobe\Acrobat Reader\9.0\AdobeViewer', 'TrustedMode', 'REG_DWORD', '00000000')
RegWrite('HKEY_CURRENT_USER\Software\Adobe\Acrobat Reader\9.0\AdobeViewer', 'EULA', 'REG_DWORD', '00000001')
RegWrite('HKEY_CURRENT_USER\Software\Adobe\Acrobat Reader\9.0\AdobeViewer', 'Launched', 'REG_DWORD', '00000001')
RegWrite('HKEY_LOCAL_MACHINE\Software\Adobe\Acrobat Reader\9.0\AdobeViewer', 'EULA', 'REG_DWORD', '00000001')
RegWrite('HKEY_LOCAL_MACHINE\Software\Adobe\Acrobat Reader\9.0\AdobeViewer', 'Launched', 'REG_DWORD', '00000001')
RegDelete('HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run', 'Adobe Reader Speed Launcher')
Edited for typos.