Text File Search - Multithreaded

I need a prototype model for a C# windows application which can do multithreaded text file search . Requirements are as follow 1. One simple windows form with one button which says "Run" 2. Once Run is clicked the app should search for a keyword say "cow" in a bunch of text files. 3. Important - Atleast 8 threads should be opened. Each thread should search a different file Ex : If 1 thread is working on searching file "A" 2nd thread should be searching file "B" and so on . 4. Require Visual Studio Solution file and source for the above Nothing else required. ## Deliverables 1. Threading is key. Threads should not block each other. 2. Each Thread should take 2 parameters file name (full path and pattern keyword) 3. thread should return number of occurences matched to main program.