Files, ListViews, Arrays

[CrAz3D]

Which is fastest & most efficent when checking for phrases to bna or words to filter?

[SNiFFeR]

Arrays.  

[Grok]

I disagree.  An array will have to be searched entirely.

Keep thinking.  This is a common question and there are widely accepted methods for it.

[Adron]

An array makes sense for phrases and similar that you need to InStr or Like for in the received text. A collection makes sense for things you can look up directly such as banned user names.

[Banana fanna fo fanna]

btree

[Stealth]

Do binary trees even make sense in Visual Basic?

[Adron]

Collections might be binary trees, I don't know how they are implemented.