Installing Microsoft Expression WEB 2.0 for 1603 error resolution

Installing Microsoft Expression WEB 2.0 today, there are 1603 errors, as if the components were wrong.

Solution:

Start-> run->services.msc-> find Windows Installer right click Set to start

Equivalent to

Right-click-> My Computer-> admin-> Service and application-> find Windows Installer right-click set to boot

principle:

Windows Installer is a software installation technology. The technology includes a Windows Installer server for 32-bit Windows operating systems, and a new package file format for storing information about configuration and installation.

Windows Installer is more than just a setup program, it is also an extensible software management system. Installation of Windows installer management software, management of additions and deletions of software components, monitoring of file recovery, and maintenance of basic disaster recovery by using rollback.

In addition, Windows installer supports the installation and running of software from multiple sources, and can be customized by developers who want to install custom programs.

Features of Windows Installer include: Restore the computer to its original state when the installation fails: Windows Installer tracks all changes made to the system during program installation. If the installation fails, installer can restore the system to its initial state. This is called "rollback."

Reference Baidu Encyclopedia.