This setting ensures that Outlook will only download OAB v4 from the server. Note that this registry key is not applicable to ANSI mode, which can only use OAB v2.
Registry Hive | HKEY_CURRENT_USER |
Registry Path | software\policies\microsoft\exchange\exchange provider |
Value Name | oab v4 only |
Value Type | REG_DWORD |
Enabled Value | 1 |
Disabled Value | 0 |