Microsoft Corp is sending a firm message to investors that it is forging full speed into business computing: We expect significant growth in enterprise computing and we’re investing heavily in it, Greg Maffei, Microsoft treasurer, told the packed audience of investors at a the conference, reiterating recent comments by president Bill Gates that the firm is investing vigorously in enterprise computing products; Maffei would not comment on sales of Windows NT 3.5 – It just came out, it’s too early to tell, Maffei told Reuters following his address; Microsoft’s other corporate products include the SQL Server for database management, SNA Server and System Management Server for network management.