COM components are used in both MATLAB® Compiler™ and MATLAB Compiler SDK™, therefore some of the instructions relating to building and packaging COM components and add-ins can be shared between products.
When you create your COM component, it is registered in either HKEY_LOCAL_MACHINE or HKEY_CURRENT_USER,
based on your log-in privileges.
If you find you need to change your run-time permissions due to security standards imposed by Microsoft® or your installation, you can do one of the following before deploying your COM component or add-in:
Log on as administrator before
running your COM component or add-in
Run the following mwregsvr command
prior to running your COM component or add-in, as follows:
mwregsvr [/u] [/s] [/useronly] project_name.dll
/u allows any user to unregister
a COM component or add-in for this server
/s runs this command silently,
generating no messages. This is helpful for use in silent installations.
/useronly allows only the currently
logged-in user to run the COM component or add-in on this server
If your COM component is registered in the USER hive,
it will not be visible to Windows
Vista™ or Windows® 7 users
running as administrator on systems with UAC (User
Access Control) enabled.
If you register a component to the USER hive
under Windows 7 or Windows
Vista, your COM component may fail
to load when running with elevated (administrator)
privileges.
If this occurs, do the following to re-register the component
to the LOCAL MACHINE hive:
Unregister the component with this command:
mwregsvr /u /useronly my_dll.dll
Reregister the component to the LOCAL MACHINE hive
with this command:
mwregsvr my_dll.dll