GetTempFileName Performance:
 [start -   end] / total --- time cost in ms
 [    1 -   500] / 65535 --- 410
 [  501 -  1000] / 65535 --- 412
 [ 1001 -  1500] / 65535 --- 416
 [ 1501 -  2000] / 65535 --- 409
 [ 2001 -  2500] / 65535 --- 411
 [ 2501 -  3000] / 65535 --- 409
 [ 3001 -  3500] / 65535 --- 417
 [ 3501 -  4000] / 65535 --- 416
 [ 4001 -  4500] / 65535 --- 407
 [ 4501 -  5000] / 65535 --- 402
 [ 5001 -  5500] / 65535 --- 420
 [ 5501 -  6000] / 65535 --- 415
 [ 6001 -  6500] / 65535 --- 404
 [ 6501 -  7000] / 65535 --- 386
 [ 7001 -  7500] / 65535 --- 414
 [ 7501 -  8000] / 65535 --- 388
 [ 8001 -  8500] / 65535 --- 401
 [ 8501 -  9000] / 65535 --- 391
 [ 9001 -  9500] / 65535 --- 389
 [ 9501 - 10000] / 65535 --- 393
 [10001 - 10500] / 65535 --- 429
 [10501 - 11000] / 65535 --- 395
 [11001 - 11500] / 65535 --- 396
 [11501 - 12000] / 65535 --- 391
 [12001 - 12500] / 65535 --- 389
 [12501 - 13000] / 65535 --- 393
 [13001 - 13500] / 65535 --- 416
 [13501 - 14000] / 65535 --- 393
 [14001 - 14500] / 65535 --- 430
 [14501 - 15000] / 65535 --- 393
 [15001 - 15500] / 65535 --- 401
 [15501 - 16000] / 65535 --- 410
 [16001 - 16500] / 65535 --- 392
 [16501 - 17000] / 65535 --- 394
 [17001 - 17500] / 65535 --- 389
 [17501 - 18000] / 65535 --- 398
 [18001 - 18500] / 65535 --- 414
 [18501 - 19000] / 65535 --- 390
 [19001 - 19500] / 65535 --- 384
 [19501 - 20000] / 65535 --- 386
 [20001 - 20500] / 65535 --- 389
 [20501 - 21000] / 65535 --- 412
 [21001 - 21500] / 65535 --- 396
 [21501 - 22000] / 65535 --- 384
 [22001 - 22500] / 65535 --- 393
 [22501 - 23000] / 65535 --- 402
 [23001 - 23500] / 65535 --- 414
 [23501 - 24000] / 65535 --- 394
 [24001 - 24500] / 65535 --- 391
 [24501 - 25000] / 65535 --- 390
 [25001 - 25500] / 65535 --- 391
 [25501 - 26000] / 65535 --- 397
 [26001 - 26500] / 65535 --- 430
 [26501 - 27000] / 65535 --- 422
 [27001 - 27500] / 65535 --- 401
 [27501 - 28000] / 65535 --- 403
 [28001 - 28500] / 65535 --- 425
 [28501 - 29000] / 65535 --- 400
 [29001 - 29500] / 65535 --- 412
 [29501 - 30000] / 65535 --- 400
 [30001 - 30500] / 65535 --- 396
 [30501 - 31000] / 65535 --- 427
 [31001 - 31500] / 65535 --- 414
 [31501 - 32000] / 65535 --- 395
 [32001 - 32500] / 65535 --- 397
 [32501 - 33000] / 65535 --- 414
 [33001 - 33500] / 65535 --- 423
 [33501 - 34000] / 65535 --- 396
 [34001 - 34500] / 65535 --- 433
 [34501 - 35000] / 65535 --- 411
 [35001 - 35500] / 65535 --- 402
 [35501 - 36000] / 65535 --- 409
 [36001 - 36500] / 65535 --- 944
 [36501 - 37000] / 65535 --- 1381
 [37001 - 37500] / 65535 --- 1424
 [37501 - 38000] / 65535 --- 1449
 [38001 - 38500] / 65535 --- 1321
 [38501 - 39000] / 65535 --- 1398
 [39001 - 39500] / 65535 --- 1643
 [39501 - 40000] / 65535 --- 1817
 [40001 - 40500] / 65535 --- 1693
 [40501 - 41000] / 65535 --- 1607
 [41001 - 41500] / 65535 --- 1601
 [41501 - 42000] / 65535 --- 1875
 [42001 - 42500] / 65535 --- 1671
 [42501 - 43000] / 65535 --- 1673
 [43001 - 43500] / 65535 --- 1781
 [43501 - 44000] / 65535 --- 1667
 [44001 - 44500] / 65535 --- 1785
 [44501 - 45000] / 65535 --- 1938
 [45001 - 45500] / 65535 --- 1882
 [45501 - 46000] / 65535 --- 2054
 [46001 - 46500] / 65535 --- 1743
 [46501 - 47000] / 65535 --- 1701
 [47001 - 47500] / 65535 --- 1429
 [47501 - 48000] / 65535 --- 1410
 [48001 - 48500] / 65535 --- 1541
 [48501 - 49000] / 65535 --- 1567
 [49001 - 49500] / 65535 --- 1502
 [49501 - 50000] / 65535 --- 1583
 [50001 - 50500] / 65535 --- 1500
 [50501 - 51000] / 65535 --- 1517
 [51001 - 51500] / 65535 --- 1597
 [51501 - 52000] / 65535 --- 2789
 [52001 - 52500] / 65535 --- 3829
 [52501 - 53000] / 65535 --- 3877
 [53001 - 53500] / 65535 --- 3323
 [53501 - 54000] / 65535 --- 3331
 [54001 - 54500] / 65535 --- 3547
 [54501 - 55000] / 65535 --- 3435
 [55001 - 55500] / 65535 --- 3576
 [55501 - 56000] / 65535 --- 3425
 [56001 - 56500] / 65535 --- 3500
 [56501 - 57000] / 65535 --- 3422
 [57001 - 57500] / 65535 --- 3669
 [57501 - 58000] / 65535 --- 3597
 [58001 - 58500] / 65535 --- 3801
 [58501 - 59000] / 65535 --- 3820
 [59001 - 59500] / 65535 --- 3599
 [59501 - 60000] / 65535 --- 5531
 [60001 - 60500] / 65535 --- 6807
 [60501 - 61000] / 65535 --- 6201
 [61001 - 61500] / 65535 --- 6053
 [61501 - 62000] / 65535 --- 5327
 [62001 - 62500] / 65535 --- 5273
 [62501 - 63000] / 65535 --- 4553
 [63001 - 63500] / 65535 --- 5655
 [63501 - 64000] / 65535 --- 6247
 [64001 - 64500] / 65535 --- 5907
 [64501 - 65000] / 65535 --- 21143
 [65001 - 65500] / 65535 --- 43495
 [65501 - 65535] / 65535 --- 44300