| Title | 
                
                    Test
                    Find
                    
                    Simple Microsoft Product Key
                 | 
            
            
                | Expression | 
                ^[A-Z1-9]{5}-[A-Z1-9]{5}-[A-Z1-9]{5}-[A-Z1-9]{5}-[A-Z1-9]{5}$  | 
            
            
                | Description | 
                Simple Microsoft product key check.  | 
            
            
                | Matches | 
                12345-12345-12345-12345-12345 | ABCDE-ABCDE-ABCDE-ABCDE-ABCDE | AB5DE-AB5DE-AB5DE-AB5DE-AB5DE  | 
            
            
                | Non-Matches | 
                12345-123-123456-12345 | ABC-ABCDEF-ABCDE-ABCDE | 12AB5-ABC-12AB567-12AB5  | 
            
            
                | Author | 
                
                    Rating:
                        
Not yet rated.
                    Amos Hurd
                 | 
            
            
                | Source | 
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              | Your Rating | 
              
                
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