[Iska]

На PowerShell проще:

Код:

Get-ChildItem -Path 'C:\Мои проекты\CPP' -Recurse -File | Where-Object -FilterScript {
    $_.CreationTime -ge (Get-Date -Year 2017 -Month 10 -Day 5) -and $_.CreationTime -le (Get-Date -Year 2017 -Month 12 -Day 10)
}