One-Click Install Installations in InstallScript Projects

InstallShield 2020

Project:This information applies to InstallScript projects.

A One-Click Install installation includes a setup player (Setup.ocx) that downloads and then launches the Setup.exe file with the appropriate command line. This enables end users who are using Windows Vista and later with limited privileges to run the installation; if elevated privileges are required because of the required execution level specified in the installation’s manifest, the appropriate User Account Control (UAC) prompt is displayed when the Setup.exe file is launched. If end users have an earlier version of Windows on their systems, the manifest is ignored, but the other behavior is the same.

The Setup.exe file for One-Click Install installations does not include any COM information.

Like any other installation, an Internet installation can use features such as updating, maintenance mode, multi-instance installation, silent installation—in short, any feature that is available for any InstallShield installation.

The following InstallScript functions are Internet-enabled:

Internet-Enabled InstallScript Functions

Function	Description
CopyFile	Copies a file that is specified by a valid URL, or transmits a CGI or ASP request.
ExistsDir	Checks the existence of a folder that is specified by a valid URL.
GetFileInfo	Gets information about a file that is specified by a valid URL.
GetLine	Reads lines from a file that is specified by a valid URL.
Is	Checks the following: • Whether the installation is being run from the Internet • The existence of a file or folder that is specified by a valid URL • Whether a given string is a URL • The validity of a URL
OpenFile	Opens a file that is specified by a valid URL.
ParseUrl	Retrieves the parts of the specified URL.
ReadBytes	Reads bytes from a file that is specified by a valid URL.
SeekBytes	Repositions the file pointer within a file that is specified by a valid URL.