Miscellaneous Functions

InstallShield 2024 » InstallScript Language Reference

The following functions serve various purposes, such as low-level hardware interface, feature creation and manipulation, and user output.

Miscellaneous Functions
Function	Description
Do	Executes the currently defined EXIT and HELP handlers.
DoInstall	Launches another InstallShield installation.
FormatMessage	Returns a string error message for a large negative error code.
Handler	This function is obsolete. Use HandlerEx instead.
HandlerEx	Specifies a label to branch to in response to exit and help events.
ISCompareServicePack	Compares the Service Pack number installed on the target OS to a specified Service Pack number.
IsEmpty	Checks whether a variable of type VARIANT has been initialized.
MessageBeep	Produces a standard warning beep.
Resize	Resizes an InstallScript array.
SendMessage	Sends a Windows message to another window or application.
SetObjectPermissions	Sets permissions for a file, a folder, or a registry key.
SizeOf	Returns the size of an InstallScript array.
Sprintf	Returns a formatted string composed of one or more character, numeric, or string values.
SprintfMsiLog	Writes a message directly to the Windows Installer log file.
StreamFileFromBinary	Streams a binary key with a file.
System	Reboots the computer.
VarInit	Initializes or reinitializes internal lists used by the VarSave and VarRestore functions. Calling this function effectively clears any information stored by previous VarSave calls and not yet used by subsequent VarRestore functions.
VarRestore	Restores the values of the system variables SRCDIR, TARGETDIR (in InstallScript projects), and INSTALLDIR (in Basic MSI and InstallScript projects) that were saved by the last call to VarSave.
VarSave	Saves the current value of the system variables SRCDIR, TARGETDIR (in InstallScript projects), and INSTALLDIR (in Basic MSI and InstallScript projects).