When migrated to Office 365 and ASW V10, Aspen Properties, Aspen Simulation Workbook asks to enable every time when open MS-Excel.

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Products: Aspen Simulation Workbook 
Last Updated: 20-Feb-2020
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Article ID: 000057040
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Problem Statement:
When migrated to Office 365 and ASW V10, Aspen Properties, Aspen Simulation Workbook asks to enable every time when open MS-Excel.

Solution:
1. Disable all other non-ASW Excel addins.
2. The registry key for ASW may have been switched from “load at open” to “do not load at open”, which makes the ribbon disappear upon launching Excel. 
3. Go to the Registry Editor (regedit),
4. The LoadBehavior value should be set to 3 as in the below path:
Computer\HKEY_CURRENT_USER\Software\Microsoft\Office\Excel\Addins\ASWXLAddinLoader.Connect.V10.0
 
The complete path to the ASW Registry key is seen at the attached image.

ASW V10 load Behavior
Also ensure that multiple instances of Excel are not running on the machine.
 
Key Words:
ASW, Load behavior, office 365