I don't remember what is the status of this issue, but would be nice to track it here
Last table in MS-OCSPA\] §220.127.116.11.3 describes defined Provider properties. However, it seems, there is missing property called
RefreshTimeOut. Windows implementation has definition for this property in certadm.h file:
#define wszOCSPREVPROP_REFRESHTIMEOUT L"RefreshTimeOut"