IShellApp::IsInstalled method (shappmgr.h)

Gets a value indicating whether a specified application is currently installed.

Syntax

HRESULT IsInstalled();

Type: HRESULT

This method can return one of these values.

Return code	Description
S_OK	The application is installed.
S_FALSE	The application is not installed.

Application publishers should determine if the application is currently installed and return S_OK if so, or S_FALSE if not.

Requirement	Value
Minimum supported client	Windows XP, Windows 2000 Professional [desktop apps only]
Minimum supported server	Windows Server 2003 [desktop apps only]
Target Platform	Windows
Header	shappmgr.h
DLL	Shell32.dll