Determining whether Internet Information Services (IIS) is installed is a common task for system administrators and web developers. IIS, a fundamental component of Windows Server, enables websites and web applications to be hosted on a server. Checking for its presence is crucial before configuring or troubleshooting IIS-related issues.
To ascertain if IIS is installed, there are several approaches. One method involves utilizing the Windows Registry, which stores system configuration settings. By navigating to the HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\InetStp registry key, one can locate the ‘Installed’ value. A value of 1 indicates IIS is installed, while 0 signifies its absence.