About File Installation

The functions included in the file installation library determine where a file should be installed, identify conflicts with currently installed files, and perform the installation process. These functions enable installation programs to avoid the following problems:

• Installing older versions of components over newer versions

• Changing the language in a mixed-language system without notification

• Installing multiple copies of a library in different directories

• Copying files to network directories shared by multiple users

The file installation library also includes functions that enable applications to query a version resource for file information and present the information in a clear format. This information includes the file's purpose, author, version number, and so on.

Version information can be added to any Microsoft® Windows® file that can have Windows resources, such as a dynamic-link library (DLL), an executable file, or a font file. To add the information, a developer must create a version resource and add the resource to the file by using a resource compiler and specifying VS_FILE_INFO as the resource type.

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