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.
Microsoft Visual Studio 2008 Service Pack 1 uses a new bootstrap application that chains several packages together for a seamless installation experience. Because VS2008 SP1 contains a lot of fixes and new features, it is also quite large – almost 3 times as large as VS2005 SP1.
The attached ZIP file contains scripts to both enable and disable logging for the Background Intelligent Transfer Service, or BITS. Both scripts must be run elevated so on Windows Vista or newer open an elevated command prompt and run these scripts.