Geoff Chappell - Software Analyst
Tests existence of an Internet Explorer setting that is a registry key.
BOOL ExistsKey (REFGUID Guid);
The Guid argument specifies the setting to work on.
The function returns TRUE if the setting exists in any logical hive, else FALSE.
The ExistsKey function is exported from IERTUTIL as ordinal 680 in version 8.0 and higher.