Symptoms:
-Installation of slave node fails with the below error:
iPE_PostChecks_enoc have entries:
231229220634.326314:v001: GetTransientSubscriptions (): ICOMAdminCatalog_Connect (): failed: 800706ba
231229220634.328004:v001: AddTransientSubscription (): GetTransientSubscriptions () failed: 800706ba
231229220634.328724:v001: iel_msq_subscribe_to_event (): AddTransientSubscription() failed: 800706ba
231229220634.329391:v001: iel_msq_term (): still 1 subscription(s) active, clearing them
231229220655.367047:v001: GetTransientSubscriptions (): ICOMAdminCatalog_Connect (): failed: 800706ba

-Setup works well until the point where the setup starts to check for iPE COM+ events. 
At this point, the installer stops and it says the install shield engine has stopped working. 

Cause:
The error message indicates that the iProcess Engine Slave install was unable to activate the Staffware Event Com+ server on the iProcess Engine Master node.

TIBCO iProcess Engine (SQL) and TIBCO iProcess Engine (Oracle) For all supported iProcess versions in the Windows platform.

1. Open RPC/DCOM port 135 in the Windows Firewall

2. Enable COM+ Network Access in Windows Firewall. To do this, open Control Panel, click the Windows Firewall item, and then click Allow an app or feature through Windows Firewall.

In the Allowed Apps and Features list, select the COM+ Network Access check box, and then select the appropriate scope that's required for your application. For enterprises, this is typically the Domain. However, your application may require additional settings, depending on the scenario.

The COM+ Network Access check box in the Allowed Apps and Features list.

Set the registry value that allows COM+ remote access. To do this, follow these steps:

In the Start search box, type regedit, and then click regedit.exe in the results list.
Locate the following subkey:
HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\COM3
Right-click the RemoteAccessEnabled DWORD.
In the Value data box, enter 1.
Click OK.

3. In the Component Services, My Computer, Properties
In COM Security, Launch and Activation Permissions
Go to Edit Limits
Add an entry for ANONYMOUS LOGIN and Allow all options
(Local Launch, Remote Launch, Local Activation, Remote Activation)

4. Enabled DTC in master and slave:
To enable MSDTC service:
Choose Start > (All) Programs > Administrative tools > Component Services.
Expand Computers and choose My Computer.
Right-click My Computer, choose Distributed Transaction Coordinator, right-click Local DTC, and choose Properties > Security.
Select options Network DTC Access, and Enable XA Transactions.
In Transaction Manager Communication, select the options Allow Inbound, Allow Outbound, and No Authentication Required.
allow remote clients, allow remote administration.
In the Security Configuration dialog box, click OK.
In the My Computer Properties dialog box, click OK.

5. Reboot the iPE Master server
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Installation of slave node fails with error. Error is related to COM+ events.