By default, meeting requests sent over the Internet use the TNEF format in Outlook. You can change this behavior so that meeting requests sent over the Internet use iCalendar format by default. Enable this setting to use the iCalendar format by default.
Registry Hive | HKEY_CURRENT_USER |
Registry Path | Software\Policies\Microsoft\Office\12.0\Outlook\Options\Calendar |
Value Name | SendMtgAsICAL |
Value Type | REG_DWORD |
Enabled Value | 1 |
Disabled Value | 0 |