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Issue: After upgrade to new version, a trust certificate import prompt comes up as older version of Acrobat had Trusted Certificates recorded over time. Analysis: The Certificates are saved in user profiles at this location: %appdata%\ Adobe\Acrobat\ <version> \Security\addressbook.acrodata If the file is copied to new version Security folder for each users then it will not prompt for import, and all the Trust Certificates will be imported to new version. Solution: Create a custom VBScript to copy addressbook.acrodata from older versions to new version for each users (e.g. upgrading from versions 9.0/10.0 to 11.0) for Win7 Add it to Execute Immediate Installation Sequence after InstallFinalize Copy_Trust_Cert.vbs Script: dim arcfolder, arc10folder, arc9folder Set objFSO = CreateObject("Scripting.FileSystemObject") Set objFolder = objFSO.GetFolder("C:\Users") Set colSubfolders = objFolder.Subfolders ...

Windows Installer is an engine for performing transactional installations. When installing a product for the fist time, most often few or no files to be installed are already present on the machine. But when upgrading or patching a product, most often those files are replaced so copies must be kept if an error occurs and the installation needs to roll back. The following describes where and why Windows Installer may require so much disk space. Extracted files A bootstrap application may be required for a number of reasons. A bootstrap application may compressed setup files into the bootstrap application, or they might all be included in a self-extracting archive. Bootstrap applications may also download files from a web site either directly to a location on disk or indirectly to the Internet files cache. This location is typically under %TEMP%. If the extractor did not delete these files, you can delete these files after installation has completed. Note that some installers m...