Extensibility Functions

InstallShield 2020 » InstallScript Language Reference

Extensibility functions allow you to call functions in dynamic-link libraries, call Windows APIs, or launch another application or setup script. The UseDLL and UnUseDLL functions allow you to load or unload a DLL into memory and make use of the DLL. The LaunchApp and LaunchAppAndWait functions allow you to launch another Windows or DOS application while the script is still executing.

Extensibility Functions

Function	Description
CallDLLFx	Calls a function from an external DLL.
Delay	Delays the execution of the setup script.
LaunchApp	Launches another program. LaunchApplication supersedes this function.
LaunchAppAndWait	Launches another program and waits for that program to terminate. LaunchApplication supersedes this function.
LaunchAppAndWaitInitStartupInfo	Initializes the LAAW_STARTUPINFO and LAAW_PARAMETERS system variables to the appropriate default values. LaunchApplicationInit supersedes this function.
LaunchApplication	Uses either the Windows API function CreateProcess or the Windows API function ShellExecuteEx to launch the specified application. After the application is launched, the installation can optionally call WaitForApplication to wait for the application to terminate.
LaunchApplicationInit	Initializes the LAAW_STARTUPINFO and LAAW_PARAMETERS system variables to the appropriate default values. This function is called automatically during installation initialization.
UnUseDLL	Unloads a DLL from memory.
UseDLL	Loads a DLL into memory.
WaitForApplication	Waits for a running application to terminate before returning.