Aliso Viejo-based Quest Software has scored an OEM win at Adobe Systems, the firm said yesterday, for a software product for single sign-on. According to Quest, Adobe is using the firm's software to provide single sign-on to Adobe LiveCycle products in Java environments with Active Directory. Active Directory is Microsoft's central user logon and authentication system. Financial impact of the OEM win was not diclosed. Quest's software is being used by Adobe so users only have to login once to enterprise systems; Quest's software allows Java and Java EE applications to login to Active Directory.