-->
Windows Installer runs as a service on computers using 32-bit or 64-bit Windows. Versions of the installer earlier than version 2.0 can install and manage 32-bit Windows Installer Packages only on 32-bit operating systems. Note that you cannot advertise or install a 64-bit application on a 32-bit operating system.
A Windows Installer package must be specified as either a 32-bit or a 64-bit package; it cannot be specified as neutral. On a computer using a 64-bit operating system, the Windows Installer service is hosted in a 64-bit process that installs both 32-bit and 64-bit packages. Windows Installer installs three types of Windows installer packages on a computer running a 64-bit operating system:
898628 Windows Installer fails silently after you upgrade to Windows Installer 3.1 The version number is 3.1.4000.2435. All other binaries of the Windows Installer 3.1 (v2) package remained unchanged and are version 3.1.4000.1823. ITunes 12.1.3 for Windows (64-bit — for older video cards) Only use this installer if you were directed to this page by the below alert message from iTunes 12.1 or later. Using this installer on an incorrect system may prevent your system from getting the correct iTunes installer in the future. Install as you normally would. Your iTunes library will not be affected. Anaconda with Python 3 on 64-bit Windows¶ To verify the file integrity using MD5 or SHA-256, see cryptographic hash verification. One of the problems with old XP programs is their use of a 16-bit installer which will not work on 64-bit Windows, any version. Please remember to click “Mark as Answer” on the post that helps you, and to click “Unmark as Answer” if a marked post does not actually answer your question.
- 32-bit packages that contain only 32-bit components.
- 64-bit packages containing some 32 bit components.
- 64-bit packages containing only 64 bit components.
- Download iTunes 12.4.3 for Windows (64-bit - for older video cards) Only use this installer if you were directed to this page by the below alert message from iTunes 12.2 or later. Using this installer on an incorrect system may prevent your system from getting the correct iTunes installer in the future.” Install as you normally would. Your iTunes library will not be affected.
- Anaconda with Python 3 on 64-bit Windows¶ To verify the file integrity using MD5 or SHA-256, see cryptographic hash verification. Hashes for Anaconda3-2019.07-Windows-x8664.exe.
The follow sections describe the two types of Windows Installer packages and the new installer properties provided by Windows Installer for 64-bit packages.