After creating an add-in DLL, you need to add it to the file vault. The permission to add or remove an add-in is configured in the User Manager of the SOLIDWORKS PDM Administration tool. The add-in properties are set in the Properties dialog box that appears when you right-click an add-in in the Administration Tool and select Open.

Read the SOLIDWORKS PDM Administration Guide to learn more about adding and removing add-ins to and from file vaults.

Read more about creating add-ins in Getting Started.