OPC and DCOM Configuration. Creating a user and giving access permissions
OPC and DCOM Configuration on Windows 2008 and Windows 7
2. Creating a user and giving access permissions
2.1 Adding a user
You need to create a user that has permissions to run and use DCOM applications. To increase security, you can create a user with restricted permissions. You need to have administrator permissions to add a user.
Attention! You need to create users with the same name and password on both computers (where the server and the client are installed). Further on you should run the OPC client using this user account.
Fig. 2 Access to the computer or server management console
Fig. 3 Adding a new user
Fig. 4 New user properties
You can create a user with any name. The password must be specified and must not be empty.
2.2 Giving permissions
To allow the new user to work with DCOM, you should add the user to the corresponding "DCOM Users" group.
Fig. 5 User groups
Fig. 6 Adding a user to the group
Fig. 7 Selecting the user
Fig. 8 User list
Fig. 9 Selected user
Fig. 10 User in the group
Note. You can create several users and add them to one "DCOM Users" group. You can also add existing users to this group.