2016 Update

Task/Text-processing-Max-licenses-in-use/00DESCRIPTION

@@ -1,9 +1,13 @@
-A company currently pays a fixed sum for the use of a particular licensed software package. In determining if it has a good deal it decides to calculate its maximum use of the software from its license management log file.
+A company currently pays a fixed sum for the use of a particular licensed software package.   In determining if it has a good deal it decides to calculate its maximum use of the software from its license management log file.
 
-Assume the software's licensing daemon faithfully records a checkout event when a copy of the software starts and a checkin event when the software finishes to its log file. An example of  checkout and  checkin events are:
+Assume the software's licensing daemon faithfully records a checkout event when a copy of the software starts and a checkin event when the software finishes to its log file.
+
+An example of  checkout and  checkin events are:
   License OUT @ 2008/10/03_23:51:05 for job 4974
   ...
   License IN  @ 2008/10/04_00:18:22 for job 4974
 
 
-Save the 10,000 line log file from [http://rosettacode.org/resources/mlijobs.txt here] into a local file then write a program to scan the file extracting both the maximum licenses that were out at any time, and the time(s) at which this occurs.
+;Task:
+Save the 10,000 line log file from &nbsp; [http://rosettacode.org/resources/mlijobs.txt <big> here</big>] &nbsp; into a local file, then write a program to scan the file extracting both the maximum licenses that were out at any time, and the time(s) at which this occurs.
+<br><br>

Task/Text-processing-Max-licenses-in-use/PowerShell/text-processing-max-licenses-in-use.psh

@@ -0,0 +1,45 @@
+[int]$count = 0
+[int]$maxCount = 0
+[datetime[]]$times = @()
+
+$jobs = Get-Content -Path ".\mlijobs.txt" | ForEach-Object {
+    [string[]]$fields   = $_.Split(" ",[StringSplitOptions]::RemoveEmptyEntries)
+    [datetime]$datetime = Get-Date $fields[3].Replace("_"," ")
+    [PSCustomObject]@{
+        State = $fields[1]
+        Date  = $datetime
+        Job   = $fields[6]
+    }
+}
+
+foreach ($job in $jobs)
+{
+    switch ($job.State)
+    {
+        "IN"
+        {
+            $count--
+        }
+        "OUT"
+        {
+            $count++
+
+            if ($count -gt $maxCount)
+            {
+                $maxCount = $count
+                $times = @()
+                $times+= $job.Date
+            }
+            elseif ($count -eq $maxCount)
+            {
+                $times+= $job.Date
+            }
+        }
+    }
+}
+
+[PSCustomObject]@{
+    LicensesOut = $maxCount
+    StartTime   = $times[0]
+    EndTime     = $times[1]
+}