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Configuring the DCOM interface (up to Version 2025)

The communication of the Eplan License Manager with the Eplan License Client is effected via the interface "Distributed Component Object Model (DCOM)" provided by Microsoft on each operating system. This has to be configured after the Eplan License Manager has been installed.

Access to the DCOM interface can be configured either for all domain users or for a group of users.

If you are using a Primary and a Standby License Manager, configure the DCOM interface in both License Managers identically.

Both variants are described in the following sections. It is assumed that a group called "ELM-User" has been created in the domain for the second variant.

  1. Open the configuration program for the DCOM interface. To do so, select Start > Run.
  2. In the Run dialog enter the dcomcnfg.exe command.

    3. The Component Services dialog opens.

  3. In the tree view of this dialog select Component Services > Computers > My Computer.
  4. Right-click My Computer and select the Properties menu item from the popup menu.

    5. The My Computer Properties dialog opens.

  5. In the Default properties tab, select the Activate DCOM (Distributed COM) on this computer check box.
  6. Change to the COM Security tab.
  7. Under Launch and Activation Permissions, click the Edit Limits button.

    8. The Launch and Activation Permissions dialog opens.

  8. Specify the security settings in this dialog.
    • If access is to be allowed for all users, select Everyone and then select the Allow check box for all permission types.
    • If access is only to be permitted for members of an "ELM-User" group, click the Add button, select the corresponding group and activate Allow for all permission types.

    Note

    The following settings must be set to allow the sign-in for cross-domain use as well as via VPN:

    Menu path: Tab COM security > Group box Access rights > Button Edit limits > Dialog Access rights

    1. Select the "ANONYMOUS SIGN-IN" group or user name.
    2. Activate the Local access and Remote access check boxes.
    3. Add the "Authenticated users" user.

    You must also use this option for the Windows operating systems Windows 10 and Windows Server 2019 / 2022.

  9. Close the Launch and Activation Permissions and My Computer Properties dialogs by clicking OK.
  10. In the tree view of the Component Services dialog navigate to the DCOM Configuration folder.
  11. Right-click the ELM7 component and select the Properties menu item.

    12. The ELM7 Properties dialog opens.

  12. Select the Security tab.
  13. In the Launch and Activation Permissions group box, activate the Customize option and click the Edit button.

    14. The Launch and Activation Permissions dialog opens.

    • If access is to be allowed for all users, select Everyone and then select the Allow check box for all permission types.
    • If access is only to be permitted for members of an "ELM-User" group, click the Add button, select the corresponding group and activate Allow for all permission types.
  14. In the Access permission group box, activate the Customize option.
  15. Click the Edit button.

    16. The Access Permission dialog opens.

    • If access is to be allowed for all users, select Everyone and then select the Allow check box for all permission types.
    • If access is only to be permitted for members of an "ELM-User" group, click the Add button, select the corresponding group and activate Allow for all permission types.

    Note

    The following settings must be set to allow the sign-in for cross-domain use as well as via VPN:

    Menu path: Tab Security > Group box Access rights > Button Edit > Dialog Access rights

    1. Select the "ANONYMOUS SIGN-IN" group or user name.
    2. Activate the Local access and Remote access check boxes.
    3. Add the "Authenticated users" user.

    You must also use this option for the Windows operating systems Windows 10, Windows Server 2019 / 2022 and Windows 11.

  16. In the Configuration permission group box, activate the Customize option.
  17. Click the Edit button.

    18. The Change Configuration Permission dialog opens.

    • If access is to be allowed for all users, select Everyone and then select the Allow check box for all permission types.
    • If access is only to be permitted for members of an "ELM-User" group, click the Add button, select the corresponding group and activate Allow for all permission types.
  18. Close the Launch and Activation Permissions and ELM7 Properties dialogs by clicking OK.

    19. The Eplan License Manager can now be accessed from every authorized client.

  19. Restart the Remote Dongle Server service to apply the modifications.
  20. You have successfully configured the DCOM interface.

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