While Microsoft's new "live" software push is mainly seen as an effort to compete with rivals such as Google and Yahoo, there are a number of smaller companies that suddenly find themselves in Redmond's competitive crosshairs.
As part of its broad announcement on Tuesday, Microsoft revealed plans to offer for free a number of things that its rivals charge for, including services such as virus scanning, Internet-to-telephone calling and Web hosting.
On the telephone side, Microsoft showed off the ability to call any traditional phone number from within the new Windows Live messenger client. That service is expected to be in beta testing by December, Microsoft said.
While instant messaging programs have had voice chat for some time, Microsoft's move would be broader by allowing free calling to traditional phone numbers as well. Vonage, Skype and others have offered such abilities, but have done so for a fee.
A Microsoft representative clarified later on Tuesday that it won't charge for phone calls during the beta of Windows Live, but declined to comment further on the company's pricing plans.
Vonage maintains it has an advantage in that its service doesn't require a PC.
"We have been very successful at competing with free services for a long time," said Brooke Schulz, a spokeswoman for Vonage. "Skype has been around as long as we have. But what Skype and Microsoft are offering is really different, because the Vonage service isn't PC-based. Our usability is the same as traditional phones and we see this as an advantage."
AOL has also announced plans for paid VoIP services, as has EarthLink.
eBay spokesman Hani Durzy said executives from Skype, based in London, had not had a chance to see the specific Microsoft product and that eBay typically doesn't comment on other companies' products. "We at Skype will continue to remain focused on Skype's lead in online voice communications."
On the security front, Microsoft went beyond its already announced plans for the subscription OneCare service. In addition to that paid program, Microsoft plans a new Windows Live Safety Centre — a free Web-based program that allows on-demand scanning and removal of viruses.
Microsoft is late to the game with its online security services, said David Perry, director of global education for Trend Micro.
"It is interesting that Microsoft is trying to put these services online. It is a good thing, but something that Trend Micro has done for eight years with our House Call service," said David Perry, director of global education for Trend Micro. House Call scans for viruses, spyware and known vulnerabilities.
Symantec had no comment on Microsoft's announcements and McAfee did not immediately respond to a request for comment.
Microsoft also demonstrated a business card sharing feature that allowed messenger buddies to exchange online business cards. Whenever a contact changed their phone number or other information, the update is automatically made for their buddies, not only online, but also on their PC and even Windows Mobile-based devices.
That could be a threat to companies like Plaxo, that have built their business around helping professionals keep their contact lists up to date.
Plaxo chief executive Ben Golub agreed the Microsoft announcements are significant, but downplayed the impact on his company.
"If you are a Plaxo member we give you the ability to have your address book and calendar always synchronised and available from multiple, different accounts and platforms... People within my network are always up to date with my information and vice versa," Golub said.
And, though a little further off in the distance, Microsoft's Office Live services also represent a threat to those providing small businesses with email and Web hosting services. Microsoft said that, for free, it will give businesses a domain name, a Web site with 30MB of storage and five Web-based email accounts.
Any number of Web hosting firms, telecommunications companies and Internet service providers could see a chunk of business lost to Microsoft's free offer.
That effort is expected to take some time, though. Microsoft plans to roll it out slowly, beginning with an invitation-only beta test that is scheduled to start early next year.
CNET News.com's Elinor Mills, Marguerite Reardon and Joris Evers contributed to this report
