text: // Copyright (c) 1999  Microsoft Corporation.  All Rights Reserved.
  /*
      Caching the filter cache
  
  
      Filter cache cache looks like this
  
      FILTER_CACHE - includes
          total size
          version
          merit
  */
  
  
  typedef struct _FILTER_CACHE
  {
      DWORD dwSize;
      //  Signature
      enum {
          CacheSignature  = 'fche',
          FilterDataSignature = 'fdat'
      };
      DWORD dwSignature;
      DWORDLONG dwlBootTime;    // Save when we think we last booted
      enum { Version = 0x0102 }; // Change this for new cache layouts
      DWORD dwVersion;
      DWORD dwPnPVersion;        // Compare against mmdevldr value
      DWORD dwMerit;
      DWORD cFilters;
  } FILTER_CACHE;
  
  