The EvtRpcVariantList data type is a wrapper for multiple EvtRpcVariant (section 2.2.7) data types.

 typedef struct tag_EvtRpcVariantList {
   [range(0, MAX_RPC_VARIANT_LIST_COUNT)] 
     DWORD count;
   [size_is(count)] EvtRpcVariant* props;
 } EvtRpcVariantList;

count: Number of EvtRpcVariant values pointed to by the props field.

props: Pointer to an array of EvtRpcVariant values.