Archiving company Smarsh Inc. believes its purchase of Houston-based Presensoft will help it better capture instant messaging data. Under the deal, Presensoft’s 12 employees will join Smarsh, said Ken Anderson, vice president of marketing. Smarsh will also gain 66 new customers under the deal. Presensoft makes cloud-based archiving software that’s aimed at instant messaging platforms and used by customers for corporate enforcement and compliance. Messaging platforms such as Microsoft Skype and QQ can now be added to Smarsh’s technology.