description | ms.assetid | title | ms.topic | ms.date |
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To force a COM-client application to always use the same copy of a COM-server, author the application's installation package to specify an isolated components relationship between the COM server and client. |
387c1c4d-16f5-4f46-b868-c2be7cb3f942 |
Installing a COM Component to a Private Location |
article |
05/31/2018 |
To force a COM-client application to always use the same copy of a COM-server, author the application's installation package to specify an isolated components relationship between the COM server and client. This installs a private copy of the COM-server component to a location used exclusively by the client application. Do the following when authoring the package:
- Put the COM server DLL and the .exe client in separate components.
- Enter a record in the IsolatedComponent table with the COM-client component in the Component_Shared column and the client application in the Component_Application column. Include the IsolateComponents action in the sequence tables.
- Set the msidbComponentAttributesSharedDllRefCount bit in the Component table record for Component_Shared. The installer requires this global refcount on the shared location to protect the shared files and registration in cases where there is sharing with other installation technologies.