1)   HD Projette 2.0.0.9
HD Projette is the cheapest solution when you simply need to view a Microsoft Project Plan (MPP). Projette displays files created by MS Project 2000 and 2003. Print functionality is provided once the product is registered.
MPP, MS Project, Project Viewer, Viewer, Microsoft Project, MPP Viewer,

 2)   project2planner 2.0
Free tool to convert project plans created by MS-Project (MPP files) to Smartworks Project planner (PPR) format. Users can now share the MPP files with others who do not have MS-Project installed on their system.
Smartworks, Project Planner, MS-Project, PPR, MPP, Free, Microsoft project,

 3)   LiveProject 2.3.3.5
LiveProject is a FREE Project Viewer for Microsoft .mpp files, without expiration date. View Microsoft MPP Project plans, task and resource tables, gantt charts. Export to excel, PowerPoint and e-mails using templates. Sort and filter tasks.
mpp, project viewer, project collaboration, project management, .mpp, project server, office project server, project reader, microsoft project, project plan,

 4)   LiveProject Professional 2.3.3.5
LiveProject enables Managers to collaborate with team members using MS Project files. Each user can suggest task changes/new tasks, and view projects shared by the manager. Provides visibility, accountability, and 'live' updates of project health.
project collaboration, project viewer, project viewers, mpp, .mpp, project server, project reader, microsoft project, project plan, project management,