User Guide

Scripting Runtime.” What should I do?
Make sure that you have the administrator privileges to run the setup on the machine and then run
IsScript.msi
from the original installation packet. Run the file InstmsiA.exe on Windows 9x or Me or InstmsiW.exe on
Windows NT, 2000 or XP to install and configure the Windows Installer Service on the machine. These files can
be found in the same path as Setup.exe. If the issue persists, then register the Msiexec.exe file on the machine
manually. To do this, run the following command line options in the Start > Run command or command prompt
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.
Q9. How can I optimize the performance of VirtualClass?
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.
Q10. 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.
Q11. Why can’t the teacher and students hear from or talk to each other?
The following functions will use audio: when using the Monitor, Control and Talk. the teacher and students
can communicate with each other; when using the Broadcast and Lecture functions, students can only hear
from the teacher.
If audio does not work properly, please check the system’s volume Configuration from “Control Panel ->
Sounds and Audio Devices -> Audio -> Volume -> Options -> Properties -> Recording” or by
double-clicking the Volume icon
in the task tray and selecting Options -> Properties -> Recording from
the Volume Control window.
Check the status of all options in the Show the following volume controls screen:
A) To send audio from Teacher to Student, make sure “Mono Mix” is selected on the teacher computer, and
“Microphone” and “Stereo Mix” are not selected. Also make sure that “Microphone” is selected on the Student
computer.
B) To send audio to Student, make sure that “Microphone” is selected on the Teacher’s computer and “Mono Mix”
is selected on the student computer.
After configuration, exit and restart VirtualClass to have the changes take effect.
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