COM+ and DCOM Requirements

The requirements for COM+ and DCOM are as follows.

Requirement	Description
Registry key value `Com+Enabled`	If the registry key value `Com+Enabled` in the `HKLM\SOFTWARE\Microsoft\COM3` registry key is set to 0 (disabled) on the source machine, attempts to connect from the destination machine to the source machine and list COM+ applications on the source machine will result in an error. If `Com+Enabled` is disabled on the destination machine, it will not be possible to list COM+ applications on the destination machine or install COM+ applications on the destination machine, which means that containers that have COM+ application packages will fail to dock. Additionally, if `RemoteAccessEnabled` is disabled on the source machine, attempts to connect from the destination machine to the source machine and list COM+ applications on the source machine will result in an error.
Membership in the Distributed COM Users Group	The account used to perform the export (the account specified in the tether credentials) must be a member of the Distributed COM Users group on the source machine. Otherwise, the export will fail.
Configure your firewall to allow DCOM connections	You may need to configure your firewall to allow DCOM connections. For information, see: https://campus.barracuda.com/product/archiveone/doc/46206124/how-to-configure-the-firewall-to-allow-dcom-connections/
`AutoShareServer` and `LocalAccountTokenFilterPolicy` registry keys	For less than Windows Server 2008 The following key must be set to 1 or undefined: `Local SYSTEM\CurrentControlSet\Services\LanmanServer\Parameters\AutoShareServer` For Windows Server 2008 or higher The Remote Account must be the built-in Administrator (not just an Administrator), or the following key must be set to 1 on both the source and destination machine: `SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\LocalAccountTokenFilterPolicy`
`complusnetwork` registry key	For Windows Server 2003 Source Machines To ensure that VirtaMove can access COM/COM+ components related to your application, the Application Server Role must be installed and the following key must be enabled (set to 1) on the source server: `HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Setup\OC Manager\Subcomponents\complusnetwork` A reboot is not required after you change the value of this key. For Windows Server 2008 and Higher Source Machines For Windows Server 2008 and higher source machines, the `complusnetwork` key does not exist. However, port 135 must be open to allow VirtaMove access to COM/COM+ components. For more information, see: https://technet.microsoft.com/en-us/library/cc731967(v=ws.11).aspx.

To enable the Com+Enabled registry key

Enable the Com+Enabled key as follows:

Start Registry Editor.
Locate and click the following key in the registry: HKEY_LOCAL_MACHINE\Software\Microsoft\COM3
Set the registry key value RemoteAccessEnabled to 1
Set the registry key value Com+Enabled to 1.
Quit Registry Editor.