The Credential Store and the ASO Manager both store credentials encrypted using Microsoft DPAPI technology. The Credential Store is the older of the two and has very limited capabilities. The ASO Manager is integrated with your adapters and will dynamically build a UI for editing the credentials which can be displayed using the ShowCredentialsDialog method. The ASO Manager can be instructed to automatically log in to an application when the login controls appear as well. There are many more methods available on the ASO Manager.
Wondering about the following statement - "The Credential Store and the ASO Manager both store credentials encrypted using Microsoft DPAPI technology.", so the question is, are there any known issues with Credential Store & ASO Manager when/after migrating from version 7.1 to that of 8.0? Given it is utilizing the underlying MS DPAPI Technology and under-the-covers we are changing the underlying .NET Framework (2.0 to 4.0) when moving to version 8.0...? Reason for asking is that we are seeing some users (not all) having to re-enter their Login Credentials on a daily basis. The Credential Store does not seem to be retaining the values as it was in 7.1, so wasn't sure if there was a known issue.