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Notes about how to export and import customizations
You can export customizations from a server that is running Microsoft Dynamics CRM 4.0 and that has Update Rollup 2, Update Rollup 3, Update Rollup 4, Update Rollup 5, or Update Rollup 6 installed, and then you can import those customizations into a server that has Update Rollup 7 installed. You can also export customizations from a server that is running Microsoft Dynamics CRM 4.0 and that has Update Rollup 7 installed, and then you can import those customizations into a server that has Update Rollup 2, Update Rollup 3, Update Rollup 4, Update Rollup 5, or Update Rollup 6 installed.
If you export customizations from a server that is running Microsoft Dynamics CRM 4.0, do not import the customizations into the Microsoft Dynamics CRM 4.0 server in the following scenarios:
The Microsoft Dynamics CRM 4.0 server from which you are exporting the customizations has no updates installed, or it only has Update Rollup 1 for Microsoft Dynamics CRM 4.0 installed. However, the server to which you are importing the customizations only has Update Rollup 6 for Microsoft Dynamics CRM 4.0 installed.
The Microsoft Dynamics CRM 4.0 server from which you are exporting the customizations only has Update Rollup 6 for Microsoft Dynamics CRM 4.0 installed. However, the server to which you are importing the customizations has no updates installed, or only has Update Rollup 1 for Microsoft Dynamics CRM 4.0 installed.