Mapi Session limit (EVENT ID 9646), Exchange 2010 fix still valid for exchange 2013?

Hi Guy's,

we run Exchange 2013 + Outlook 2010

as i was investigating an Outlook Sync Error, for a secondary mailbox, i figured out that the Mailbox has more than 500 Folders and that i can see the Evnet ID 9646 (Mapi session exceeded the maximum of 500 objects) on the Exchange Server.

Now i found a fix for Exchange 2010 but not for Ex2013, is the old fix for EX2010 still valid?:
Navigate to HKLM > System > CurrentControlSet > Services > MSExchangeIS > ParametersSystem. Create a new key in ParametersSystem namedMaxObjsPerMapiSession. In MaxObjsPerMapiSession, create a DWORD namedobjtFolder with a decimal value of 600. Create a second DWORD namedobjtFolderView

anyone an idea on this?

regards

Stefan