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But Enderle said the figure could have been even higher if Microsoft had done a better job of handling the huge demand for technical support from customers who were frustrated trying to install the system .
 Enderle, Microsoft
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, else, organization, person 
Text: {0} 
Answer:
 Enderle, Microsoft