ALT Codes
Get the weeknumber http://www.epochconverter.com/weeknumbers
The Age of  Wisdom - Ricardo Semler Documentary : http://tegenlicht.vpro.nl/afleveringen/2014-2015/nieuwe-wijsheid-semler.html


see also: https://www.fijma.eu

creating a secure web environment with windows 2012 and hMail
https://luxsci.com/extranet/dkim.html (DKIM for hMail)
https://weblog.west-wind.com/posts/2016/Feb/22/Using-Lets-Encrypt-with-IIS-on-Windows (let's encrypt SSL certificate https://letsencrypt.org)

powershell -noexit "& ""c:\scripts\testposh.ps1""" -dbs testA,testB,testC""
powershell  "& ""c:\scripts\testposh.ps1""" -dbs testA,testB,testC""
 

URL rewriting
https://weblogs.asp.net/owscott/iis-url-rewrite-rewriting-non-www-to-www from bare domain to www
https://weblogs.asp.net/owscott/redirecting-non-www-to-domain-equivalent 
I had to research the details about why use www or not. I had the idea that http://www.it-pro.nl looks 'old' and http://it-pro.nl looks 'better' or more 'modern'.  As it turns out, there are a number of services, checks and other web related items that strongly suggest to use a www in front of a domainname. It is however not mandatory. I read some articles and decided that i make my websites start with www in front of it.

Some articles about the www variant versus 'bare' domainname:
http://www.wpbeginner.com/beginners-guide/www-vs-non-www-which-is-better-for-wordpress-seo/ 
http://www.yes-www.org/why-use-www/  and https://devcenter.heroku.com/articles/apex-domains

I was researching this to understand choices with SSL certificates: SSL 
Traffic routed over SSL behaves, at the DNS level, identical to unencrypted traffic and suffers from the same naked domain limitations.

Applications requiring SSL encryption should use the ALIAS/ANAME configuration on the root domain. Subdomain redirection will cause a browser error when the root domain is requested over SSL (i.e. https://example.com). A note on email validity and regex for validation. http://www.regular-expressions.info/email.html

remove your old windows version (windows.old folder)
https://www.windowscentral.com/how-properly-remove-windowsold-folder-windows-10