Four Chinese PC manufacturers have each signed software purchase agreements with software giant Microsoft (MSFT).

Their respective agreements involve a large expenditure, which together constitute the biggest deal that Microsoft has yet reached in China.

TCL will spend US$60 million on the purchase, Tsinghua Tongfang will spend US$120 million and Founder will use US$250 million. Lenovo is said to the biggest buyer among them, with its total purchase value nearly doubling that of Founder.

Based on these figures, the total income that Microsoft makes from these deals will exceed US$700 million.

This purchase also symbolizes a beginning for the parties to jointly promote legitimate software in China.