title: Exclude file extensions regular expression
body: <p>I have a regular expression for a URL check written in VBScript.</p>
  
  <pre><code>regLinkEx.Pattern = "(^|[\s&gt;='])((((http|ftp|https):\/\/)?([а-яёa-z\-_]{1,})(\.[а-яёa-z\-_]{2,})*(\.([^exe|EXE|xml|XML|dll|DLL|ini|INI|bat|BAT|dat|DAT|bin|BIN|mif|MIF|txt|TXT|]){2,}|рф)+)([\w\-\.,@?^=%&amp;amp;:/~\+#]*[\w\-\@?^=%&amp;amp;/~\+#])?)"
  </code></pre>
  
  <p>I exclude file extensions that I need, but I also want to match letters from a to z
  this is the part where I want, and I'm trying to do like this...</p>
  
  <pre><code>(\.[a-z]*([^exe|EXE|xml|XML|dll|DLL|ini|INI|bat|BAT|dat|DAT|bin|BIN|mif|MIF|txt|TXT|]){2,}|рф)+)
  </code></pre>
  
  <p>...but it doesn't work.</p>
  
  <p>Can anyone help me?</p>