I have managed to resolve this.
For anyone that encounters this you need to do the following:
1. Click Start, point to Administrative Tools, and then click Component Services.
2. Expand the Component Services\Computers container.
3. Right-click My Computer, and then click Properties.
4. On the COM Security tab, click Edit Limits in the Launch and Activation Permissions area or in the Remote Activation area. The area depends on where the issue occurs.
5. Click the account that you want to enable remote activation with, click Allow for the Remote Access permissions or for the Remote Launch and Remote Activation permissions.
6. Click OK two times to accept the changes. Then, try to use the program that uses DCOM.