User Guide

62
of the operating system:
Windows NT, 2000:
C:\Winnt\System32\Msiexec.exe /REGSERVER
Windows 9x, Me or XP:
C:\Windows\System\Msiexec.exe /REGSERVER
Make sure that the Installer folder in the Windows directory on the
machine is not read-only. The path to the installer folder is typically
C:\Winnt\Installer on Windows NT, 2000 and XP machines and
C:\Windows\Installer on Windows 9x and Me machines. Right-click on
the Installer folder and make sure that it is not read-only. On some
machines, the installer folder may be hidden. Before searching for this
folder in the above path, make sure to check the option “Show hidden
files and folders” in the Windows Explorer options. Launch the Task
Manager to see if multiple instances of Msiexec.exe or IDriver.exe are
running on the machine. You can launch the Task Manager by pressing
Ctrl+Alt+Delete. You should have at least one instance of these
files running. But if you see more than one instance of Msiexec.exe or
IDriver.exe, it could be the cause of the issue. If this is the case, please
restart your system and try again.
Q8. How can I optimize VirtualClass’s performance?
You can try the following to improve your VirtualClass performance:
1. Reduce your screen resolution (e.g. reduce 1024 X 768 to 800 X
600).
2. Reduce the color quality (e.g. reduce 32-bit to 16-bit).
3. Do not set up a background picture
4. For Windows XP users, please select Appearance in Display
properties, and then set Windows and buttons as Windows
classic style.
5. Upgrade the display adapter driver.
Q9. Why can’t some student computers receive the screen
broadcast in a network?
Please check whether the connection of the student computers is
working properly. We provided a tool for testing the network
connection for both the teacher and student computers. Start this tool
from Start->Programs->VirtualClass->Network Test and check
whether the computers can send or receive data.
Q10. Why can’t the teacher and students hear from or talk to
each other?