, a provider of Internet-management software, raised its guidance for the second quarter, and the estimate lifted the company's stock in postmarket trading Monday.

The company now expects second-quarter revenue of $19.4 million to $19.6 million, an increase of more than 33% from $14.6 million in the same period a year ago and about 5% above the first quarter of 2003.

As a result, Websense said earnings should be around 18 cents a share. Previously, the company had forecast 16 cents to 17 cents a share. Final results for the quarter will be released on July 22.

Billings for the second quarter should exceed $25 million, an increase of more than 35% from the prior quarter and about 40% from a year ago. Also for the second quarter, total deferred revenue should be at least $70 million.

Analysts polled by Thomson First Call are expecting a profit of 16 cents and revenue of $19.3 million for the second quarter.

Following the estimates, shares of Websense rose $2.88, or 18.4%, to $18.50 in Instinet trading after the regular session ended.