Geoff Chappell - Software Analyst
Tests existence of an Internet Explorer setting that is a registry key, allowing placeholders in the key’s name.
BOOL ExistsExtKey ( REFGUID Guid, UINT ArgCount, ...);
The Guid argument specifies the setting to work on.
The ArgCount argument specifies how many placeholders are provided as remaining arguments. Each placeholder is a PCWSTR.
The function returns TRUE if the setting exists in any logical hive, else FALSE.
The ExistsExtKey function is exported from IERTUTIL as ordinal 664 in version 8.0 and higher.