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OS_APPLIANCE

When the IsOS function is given OS_APPLIANCE as its dwOS argument, it answers according to the following registry value:

Key HKEY_LOCAL_MACHINE\System\WPA\ApplianceServer
Value Installed
Type REG_DWORD

The value is queried only when the function is first called (per-process) for this case of dwOS. The function returns TRUE if the value is a non-zero DWORD.

Availability

The OS_APPLIANCE case of the SHLWAPI function IsOS is supported in late 6.00 builds and higher.