In rare cases, a computer may not have a Microsoft package required for the installation of the Visual Basic PowerPacks, one of the prerequisite applications for Orca3D. This results in the error message "An error occurred while installing system components for Orca3D."

Please use the following link to download and install the Microsoft .Net Framework 3.5 SP1 (including Framework 2.0 and 3.0):
Microsoft .Net Framework 3.5 SP1