Quest Software (QSFT) said Thursday it will acquire privately held ScriptLogic, expanding Quest's presence in the small- and medium-sized business software market.

Aliso Viejo, Calif.-based Quest, which provides database software and Windows management solutions, said the $90 million cash deal will close in the third quarter.

Quest shares were down 21 cents, or 1.3%, to $16.23 in morning trading.

ScriptLogic, based in Boca Raton, Fla., designs systems lifecycle management software for Windows networks. It reportedly has revenue of $20 million a year. ScriptLogic CEO Jason Judge will stay on and report to Quest CEO Vinny Smith.

The acquisition helps Quest meet the Windows management needs of smaller businesses, according to Smith.