 Tyler Robinson Lead Program Manager Microsoft Corporation PC42

Multiple UAC promptsLong installation timesFiles left over after a failed install or uninstall Unnecessary add/remove programs control panel entries

Product A External Chainer Transaction Rollback Uninstall Product A Install Product B Failure Rollback Install Product B Failure Install

Word Outlook Installs Spell Checker v12.0 Installs Spell Checker v12.5 Updates Spell Checker to v12.6 Install WordInstall OutlookApply a patch to Word Uninstall the patch to Word Word Outlook Word Patch Word Outlook Updates Spell Checker to v12.0 Design Change: Windows Installer patch uninstall behavior should consider the global machine state instead of just the product state Requirement: Ability to keep the highest version of a shared component when a patch to it is uninstalled

Installs Spell Checker v12.0 Installs Spell Checker v12.5 Updates Spell Checker to v12.6 Install WordInstall OutlookApply a patch to Word Uninstall the patch to Word Updates Spell Checker to v12.5 Word Outlook Word Outlook Word Patch Word Outlook Spell Checker 12.0 MSI Datastore Spell Checker 12.0 Word’s cache Spell Checker 12.5 Spell Checker 12.6 Spell Checker 12.5 Outlook’s cache Spell Checker 12.5

Click install …Install the.NET Framework… Install other prerequisites… Install the application…

Operating SystemNo FXNETFX 1.1NET FX 2.0/SP1 NET FX 3.0/SP1 NETFX 3.5 Windows XP SP2+Client InstallFull Install Windows VistaNA Full Install Windows Server 2003 Full Install Windows Server 2008 NA Full Install.NET Client Profile Bootstrapper will detect what versions of the.NET Framework are installed and update the computer accordingly Client Install =.NET Client redistributables will be installed Full Install =.NET Framework 3.5 SP1 full installation

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