how to remove the words such as the, is , are, and or from text file

my problem is

i want to make an application to do that

eceives a test file from the user, this file contains a list of words , the program must do the following

1- Remove the words such as the, is , are, and or

2- Count the number of occurrences of each word

3- Display a two column message, the first column contains a word and the second column contains the number of repetitions of this word

i make number 2 and 3 how can i do number 1

[483 byte] By [electronic_2010a] at [2007-11-26 18:22:33]