layout.bin setup.lid _sys1.cab _user1.cab DATA.TAG data1.cab SETUP.INI setup.ins _INST32I.EX_ SETUP.EXE _ISDEL.EXE _SETUP.DLL lang.dat os.dat I want to extract an InstallSHIELD's 5 install package and above is the list of files in "data1" folder. However there is no *.hdr files so I can't extact the CAB files using tools on Internet, even though the package is still able to be installed without any error. Can anybody give me a suggestion for this please?