INPUT:-
.\modem\api\utilitss\utils - data.h-16428;data.flf;//modem/api/utils/main/latest/utils.h - VU_MODEM_API_UTILS.00.00.3_3 : 1
.\modem\api\wms\wmstask.h-16295;GetVUsPLF.flf;/modem/api/wms/rel/09H2_02/wmstask.h - VU_MODEM_API_WMS_2H09_02.00.04.00 : 1


( my $VU_name ) = $line =~ /\-\s(\w+)[0-9]\s:/xms; 

OUTPUT:-
VU_MODEM_API_UTILS
VU_MODEM_API_WMS_2H09_02