Every 30 seconds, fastdial (or at least Firefox) perform this serie of I/O (csv format):


10:29:13,1300187,firefox.exe,4964,CreateFile,\fastdial
10:29:13,1301490,firefox.exe,4964,QueryNetworkOpenInformationFile,\fastdial
10:29:13,1302192,firefox.exe,4964,CloseFile,\fastdial
10:29:13,1305075,firefox.exe,4964,CreateFile,\fastdial\cache
10:29:13,1307203,firefox.exe,4964,QueryNetworkOpenInformationFile,\fastdial\cache
10:29:13,1308152,firefox.exe,4964,CloseFile,\fastdial\cache
10:29:13,1311201,firefox.exe,4964,CreateFile,\fastdial\cache\4d9dd9efeca934aacc5a038e8107f7aa
10:29:13,1313974,firefox.exe,4964,QueryNetworkOpenInformationFile,\fastdial\cache\4d9dd9efeca934aacc5a038e8107f7aa
10:29:13,1314927,firefox.exe,4964,CloseFile,\fastdial\cache\4d9dd9efeca934aacc5a038e8107f7aa


This is very disturbing, especially on low storage such as usb stick.