Microsoft Corp has taken a minority investment in Mill Valley, California-based Tuttle Decision Systems Inc and will integrate Tuttle’s electronic pricing technology into Microsoft’s personal finance package HomeAdvisor. Tuttle’s LockPoint Xtra software tailors loan quotations for consumers depending on their responses to seven questions, automating the reply process to respond to loan-seekers in approximately three seconds. Tuttle will spend the cash invested on extending its LockPoint Xtra product line to target the consumer market for loans and mortgages and the business market with its Risk Management Services, says chief operating officer Tim Newberry. Tuttle was set up in 1983 and is privately owned.