22.214.171.124.1 PidLidAutoStartCheck Property
Type: PtypBoolean ([MS-OXCDATA] section 2.11.1)
If the associated object is a Calendar object, the client SHOULD set the PidLidAutoStartCheck property to FALSE.
When set to TRUE, this property indicates that the conferencing application can start. A value of FALSE indicates that either this property doesn't apply to its associated object or the conferencing application is not to start automatically.