Due to a problem with the Microsoft installer, installing the ModelSim-Altera software version 6.6c or the Altera Complete Design Suite version 10.1 leaves behind a number of files on your hard drive. These files are:
The files left on your hard drive are Microsoft VC8 redistributable files from the Modelsim-Altera software installation. These files are required during Modelsim-Altera software installation. These files are safe to delete after the installation is complete.