Windows is not exactly renowned for its command line tools ;-) but AT is actually not too bad. It is a good one to know about even if it is not Perl.
C:\>at /?
The AT command schedules commands and programs to run on a computer at
a specified time and date. The Schedule service must be running to use
the AT command.
AT [\\computername] [ [id] [/DELETE] | /DELETE [/YES]]
AT [\\computername] time [/INTERACTIVE]
[ /EVERY:date[,...] | /NEXT:date[,...]] "command"
\\computername Specifies a remote computer. Commands are scheduled
+ on the
local computer if this parameter is omitted.
id Is an identification number assigned to a scheduled
command.
/delete Cancels a scheduled command. If id is omitted, all
+the
scheduled commands on the computer are canceled.
/yes Used with cancel all jobs command when no further
confirmation is desired.
time Specifies the time when command is to run.
/interactive Allows the job to interact with the desktop of the
+user
who is logged on at the time the job runs.
/every:date[,...] Runs the command on each specified day(s) of the we
+ek or
month. If date is omitted, the current day of the m
+onth
is assumed.
/next:date[,...] Runs the specified command on the next occurrence o
+f the
day (for example, next Thursday). If date is omitt
+ed, the
current day of the month is assumed.
"command" Is the Windows NT command, or batch program to be r
+un.
