OStivity - "a desktop and server hardware and software asset/inventory solution for small to enterprise sized organizations that need to quickly gain knowledge of 'what's installed' without having to manually touch every computer in the company. The next time the computer logs into the network, a complete inventory (software and hardware) is taken of the system"

Part of Nuance (was Scansoft) OmniPage document conversion software

Tuto4pc.com Group specializes in commercial advertising - "In exchange for free installation of a software called Learning Tutorial, the user agrees to receive full-screen advertising displays, after confirming his entry in a database and accepting general conditions of the license application." Detected by Malwarebytes as PUP.Optional.Tuto4PC - where * represents a character. The file is located in %ProgramFiles%\[folder]. If bundled with another installer or not installed by choice then remove it

Related to a Samsung optical mouse

Detected by Malwarebytes as PUP.Optional.OurSearches. The file is located in %AppData%\onekit\oursearches\[version] and note that there is a space at the end of the "Startup Item" field. If bundled with another installer or not installed by choice then remove it, removal instructions here

OnlineRecorder surveillance software that records Yahoo! and AOL instant messages, URLs in browsers, and keystrokes. Uninstall this software unless you put it there yourself

Optimizer Pro optimization utility by PC Utilities Pro. Detected by Malwarebytes as PUP.Optional.OptimizePro. The file is located in %ProgramFiles%\Optimizer Pro. If bundled with another installer or not installed by choice then remove it

"Outlook On the Desktop is a program that displays Outlook as a transparent, interactive object embedded in your desktop"

Lotus Organizer personal information manager (PIM) - included as part of Lotus SmartSuite but also sold as a single application. Leave enabled if you want to be alerted to appointments and have the program running in the background. Otherwise, you may easily start it manually when required

Designed specifically for OptusNet users who wish to have their connection monitored on a frequent basis. It can also estimate when you are going to hit your usage limit, and how far over your suggested limit you should be

Online Vault by Crawler, LLC - "is a small yet powerful application that automatically backs up all your important data to secure servers but also makes it possible for you to access it on the go!" Bundles potentially unwanted programs . The file is located in %ProgramFiles%\OnlineVault. If bundled with another installer or not installed by choice then remove it

A4Tech's X7 Oscar Editor mouse programming utility for their Oscar range of gaming mice

OneSafe PC Cleaner by Avanquest Software - which "allows you to both boost your computer's speeds and defrag the hard drive, saving you valuable storage space. It automatically detects errors that cause your computer to slow down by performing a full system scan." Detected by Malwarebytes as PUP.Optional.OneSafePCCleaner. The file is located in %ProgramFiles%\OneSafe PC Cleaner. If bundled with another installer or not installed by choice then remove it

A4Tech's X7 Oscar Editor mouse programming utility for their Oscar range of gaming mice

Online Vault by Crawler, LLC - "is a small yet powerful application that automatically backs up all your important data to secure servers but also makes it possible for you to access it on the go!" Bundles potentially unwanted programs . The file is located in %ProgramFiles%\OnlineVault. If bundled with another installer or not installed by choice then remove it

Open University Oxigen screensaver admin client. Downloads the latest information from the net to display in the screen saver

Third party tweaker for ATI Rage 128 Video cards

Detected by Malwarebytes as PUP.Optional.Acronet. Note that regsvr32.exe is a legitimate Microsoft file used to register and unregister OLE controls and shouldn't be deleted. The "PMFileReader.dll" file is located in %LocalAppData%\Oppics. If bundled with another installer or not installed by choice then remove it

Detected by Malwarebytes as PUP.Optional.Acronet. Note that regsvr32.exe is a legitimate Microsoft file used to register and unregister OLE controls and shouldn't be deleted. The "[filename].dll" file is located in %LocalAppData%\Oppics. If bundled with another installer or not installed by choice then remove it