msi: Fix several memory leaks after using IEnumSTATSTG_Next.

dlls/msi/streams.c

@@ -408,17 +408,22 @@ static UINT add_streams_to_table(MSISTREAMSVIEW *sv)
 
         /* table streams are not in the _Streams table */
         if (*stat.pwcsName == 0x4840)
+        {
+            CoTaskMemFree(stat.pwcsName);
             continue;
+        }
 
         stream = create_stream(sv, stat.pwcsName, TRUE, NULL);
         if (!stream)
         {
             count = -1;
+            CoTaskMemFree(stat.pwcsName);
             break;
         }
 
         IStorage_OpenStream(sv->db->storage, stat.pwcsName, 0,
                             STGM_READ | STGM_SHARE_EXCLUSIVE, 0, &stream->stream);
+        CoTaskMemFree(stat.pwcsName);
 
         if (!add_stream_to_table(sv, stream, count++))
         {

dlls/msi/table.c

@@ -265,6 +265,7 @@ void enum_stream_names( IStorage *stg )
         decode_streamname( stat.pwcsName, name );
         TRACE("stream %2d -> %s %s\n", n,
               debugstr_w(stat.pwcsName), debugstr_w(name) );
+        CoTaskMemFree( stat.pwcsName );
         n++;
     }
 
@@ -2577,6 +2578,7 @@ UINT msi_table_apply_transform( MSIDATABASE *db, IStorage *stg )
             break;
 
         decode_streamname( stat.pwcsName, name );
+        CoTaskMemFree( stat.pwcsName );
         if ( name[0] != 0x4840 )
             continue;