File list (Check if you may need any files):
key
...\CLK_DIV.v
...\DEBOUNCE.v
...\iseconfig
...\.........\main.xreport
...\key.gise
...\key.ise_ISE_Backup
...\key.ntrc_log
...\key.xise
...\KEY_SCAN.v
...\key_xdb
...\.......\tmp
...\main.bgn
...\main.bit
...\main.bld
...\main.cmd_log
...\main.drc
...\main.lso
...\main.ncd
...\main.ngc
...\main.ngd
...\main.ngr
...\main.pad
...\main.par
...\main.pcf
...\main.prj
...\main.stx
...\main.syr
...\main.twr
...\main.twx
...\main.ucf
...\main.unroutes
...\main.ut
...\main.v
...\main.xpi
...\main.xst
...\main_map.mrp
...\main_map.ncd
...\main_map.ngm
...\main_pad.csv
...\main_pad.txt
...\main_prev_built.ngd
...\main_summary.html
...\main_usage.xml
...\main_vhdl.prj
...\TRAN_HEX_LED.v
...\v2_dcm.v
...\_impact.cmd
...\_impact.log
...\_ngo
...\....\netlist.lst
...\_xmsgs
...\......\bitgen.xmsgs
...\......\map.xmsgs
...\......\ngdbuild.xmsgs
...\......\par.xmsgs
...\......\pn_parser.xmsgs
...\......\trce.xmsgs
...\......\xst.xmsgs