Hi! I have big problem...
I'm read this post: Setup sub-domain, but problem is next... Everything working fine but I checkout all about of that and: C:\UniServer\www have index.php and my localhost called: fafafa.com. When created Sub Domain and called: subdomain.fafafa.com and created new empty folder in www folder, also behaves like fafafa.com. Why does not appear Index Of when new folder is empty???
How to created Sub Domain on UniServer???
Thanks for answer and sorry for my bad English.

This is not a PHP issue so first off you're posting in the wrong form.

So are you saying C:\UniServer\www symbolicly represents fafafa.com?

Does the folder you create correspond to the subdomain address? Meaning if you are viewing subdomain.fafafa.com is the folder inside \www\ called subdomain?

I looked at that tutorial and it seems simple to covers what you need to do to make subdomains. So I don't see what could be your problem, without seen what configs you have. To see where the error is we need to see what is in your host file and how you configured your vhost in apache for the subdomain.