“The big steps we’ve been out and after for the last several years in search [have] not been achieved and you’d have to say that the future is speculative. We’ve been asked a lot whether we’re open to consolidating transactions in the area of search. The answer is yes and it’s unlikely that we would be the consolidator.”

– IAC CEO Barry Diller

If Barry Diller is looking for somewhere to unload IAC’s Ask.com search engine, he’d be wise to consider Microsoft–if he doesn’t have that in mind already. Analysts reflecting on Diller’s recent remarks about Ask’s “speculative future” say Microsoft is the most likely buyer if IAC (IACI) is truly serious about dumping the little search engine that couldn’t.

Ask, analysts note, has about four percent of the domestic search market, which would give Microsoft (MSFT) a nice little bump up from the 9.4 percent market share it currently claims. And it certainly wouldn’t hurt that a Microsoft acquisition would undoubtedly mean the end of Ask’s relationship with Google (GOOG).

“Right now, Microsoft wants share so they could pick up those points from Ask,” Colin Gillis, an analyst at Brigantine Advisors, told Reuters. “Plus it has a double impact since Google powers Ask’s paid search.”

And speculative is an apt word for it. With just four percent share of the search market, according to comScore (SCOR), Ask has long been the inveterate fourth-place player in a contest increasingly dominated by Google (GOOG). And though it has certainly tried, Ask just can’t seem to make any headway. It isn’t fighting a losing battle, it’s fighting one that was lost long ago. No surprise then to hear that Diller is tiring of it.

Asked during an earnings call Tuesday if IAC (IACI) would consider selling the search engine, Diller said it most certainly would. “We’ve been asked a lot whether we’re open to consolidating transactions in the area of search. The answer is yes,” he said. “And, it is unlikely that we would be the consolidator.”

Obviously.

So Ask is for sale. The question now is who wants it?

The new Ask is faster than its predecessor. Its search results are more relevant and sharpened by structured data (TV listings, etc.) where available. And the little search engine that couldn’t is still using semantic technology to interpret and answer questions put to it by users. “To call it an all-new Ask is wrong; it’s an evolution of Ask,” said Barry Diller, CEO of Ask parent IAC/InterActiveCorp (IACI). “I think it’s going to help us primarily in [visitor] retention and frequency. That is really its goal.”

But while it might appeal to some, Ask’s latest iteration isn’t likely to make much of a difference in the brutish battle for search engine market share. But then Ask doesn’t need much, does it? The search business is enormously profitable. As Microsoft’s (MSFT) Don Dodge once noted, every market-share point in search is worth a billion dollars or more. So if Ask manages to boost its share of all searches even slightly, it’s a success. “Search revenue for us is very profitable and it’s certainly growing,” said Diller. “Does it matter whether or not we take big chunks of…market share? No. Would we like and hope to? Yes.”