The extension states are stored in the following registry keys:
The name corresponds to the CLSID found in the ESRI MX Extensions, ESRI GX Extensions, ESRI SX Extensions and ESRI GMx Extensions.
The data value corresponds to the enumeration esriExtensionState. The
esriExtensionState Constants are as follows:
esriESEnabled - 1 - Enabled for use.
esriESDisabled - 2 - Disabled by the user.
esriESUnavailable - 4 - Unavailable - not licensed.
It is not recommended that you modify these settings in the system registry directly. If you wish to change the Extension State use the application GUI or ArcObjects. ESRI cannot guarantee results from incorrect modifications.