Environment variable - http://technipages.com/article132.html

Win command cheat sheet - http://www.indrayam.com/archives/systems/000910.php

Windows Powershell tutorial, can work with Excel thought OLE - http://www.ddj.com/article/printableArticle.jhtml?articleID=206900601&dept_url=/windows/

Windows power shell tips - http://www.techrepublic.com/blog/window-on-windows/basic-windows-powershell-commands-you-should-already-know/4031

Overview of 65 CMD commands - http://blog.taragana.com/index.php/archive/65-useful-cmd-commands-to-understand-your-windows-networks-and-systems-in-a-better-way/

GUI development with PowerShell script, with ShowUI - http://www.drdobbs.com/windows/building-gui-applications-in-powershell/240049898

http://superuser.com/questions/182454/using-backslash-to-escape-characters-in-cmd-exe <- replace '|' by "^|"

scripting the schedule task - https://msdn.microsoft.com/en-us/library/windows/desktop/bb736357(v=vs.85).aspx