In order to resolve this issue, a C: drive must be mapped to allow the install process to create the needed temporary directory.
First, go to My Computer. In the menubar go to Tools > Map Network Drive and change Drive to C. For the Folder either create a new network shared folder or choose an existing one. Click Finish and run install for the c360 product. The mapped drive can then be deleted after all products have been installed; the file structure should contain no data.