Error while running Simulation Engine in Windows Vista

Question

Hi All,
I installed Demantra 7.2 in Windows Vista. Everything works fine except Simulation Engine. When I Start Simulation Engine i get the following Error
Warning failed to create engine monitor - Class not registered.
Can anyone pls help me out with this.
regards,
Niranjan.G

Answer 1

Hello Ruby,
it's the right id, but the note isn't published (anymore). Below are the details.
best regards
Geert
Goal
Q1: When attempting to start Simulation Engine, getting "WARNING Failed to create engine monitor.
HRESULT=0x8004154 - Class not registered." EngineManager continues to run until "Executing the
shell...", after which it gets another error "ERROR Could not create callback COM object!
HRESULT=0x8004154 - Class not registered."
Users attempted to uninstall/reinstall but still have the same issue. How can this be fixed
Q2: Another question is, can these components be registered on an XP SP2 machine with IE 7 (Internet Explorer Version 7)?
Solution
A1: Please review the above information from the Demantra Analytical_Engine.pdf and see if it resolves
the problem - especially the information on pg 3, 46, and 50 regarding registering the analyical engine
manually. To save time, this information is posted below:
Demantra Analytical_Engine.pdf - states the following on pg 3:
Engine Modes
The Analytical Engine can run in two modes: batch and simulation.
• In batch mode, the Analytical Engine considers all the item-location
combinations and generates a forecast for all of them (with a few exceptions,
noted in the next chapter). In a typical implementation, the engine automatically
runs in batch mode regularly, perhaps after new data is imported.
• In simulation mode, the Analytical Engine considers only a subset of the
combinations. In this mode, the engine (called the Simulation Engine) waits for
simulation requests and then processes them.
In simulation mode, a user runs a worksheet and submits a simulation request for
some or all of the combinations in it. The simulation request is processed in the
background but generally fairly soon. When the simulation is done, Demantra
Spectrum alerts the user, who can then accept or reject the results.
In this mode, the user is usually performing a “what if” analysis. That is, he or she
has made some changes within the worksheet and then performs the simulation to
see whether those changes have the desired effect.
It is also possible to run simulations programmatically from within a workflow.
The Analytical Engine can run in only one mode at a time.
Demantra Analytical_Engine.pdf - states the following on pg 46:
Registering the Analytical Engine
The installer registers the Analytical Engine for you, but in case of problems, you can
register the engine manually. To do so, run the batch file Demantra_root/Demand
Planner/Analytical Engines/bin\RegEngine.bat.
If you have a license for the Distributed Engine, you can run the engine on multiple
machines. You do not need to install it on every machine; you need only to register it
on them. These machines must also be running the appropriate database client
software, so that they can communicate with the Demantra Spectrum database.
For information on choosing the machines to run the engine, see “Choosing Machines
to Run the Engine” on page 50.
Demantra Analytical_Engine.pdf - states the following on pg 50:
Choosing Machines to Run the Engine
If you have a license for the Distributed Engine, you can run the engine on multiple
machines; see “Registering the Analytical Engine” on page 46. If you do not have a
license for the Distributed Engine, Demantra Spectrum runs the Analytical Engine on
only one machine.
To choose the machines to run the engine
1. Click the button next to the Selected computers field, shown here.
The Engine Administrator displays the following screen - screen shot cannot be pasted in ITS
The left list shows the machines on which the Analytical Engine has been
installed. The right list shows the machines where the Analytical Engine will run.
2. Click the arrow buttons to move machine names to and from the right list.
3. Click OK.
A2: The Installation_Guide.pdf on pg 1 - 2 states that browsers should be Internet Explorer Version 5.5 or higher. But if version 7 does not appear to work properly for registering purposes, then use IE 6