Definition - What does Windows Minidump mean?
Techopedia explains Windows Minidump
To read a minidump file, the binaries and symbol files must be available for the debugger software. Windows, particularly 2000 and XP, has a built-in minidump debugger called dumpchk. The Windows minidump file is found in the "minidump" subfolder of the Windows system folder (e.g., "C:\Windows\minidump") and looks somewhat similar to this: Mini030915-01.dmp. The first two digits ("03") stand for the month, the second ("09") for the day and the third ("15") for the year. The "-01" stands for the number of minidump file in case more than one file has been created on the same day.