The Windows Shell (explorer.exe) will check for an already running
copy using GetShellWindow(). If explorer.exe detects a shell is
already running, it will send a message to the running copy and
exit. If you want to run explorer.exe in the virtual environment,
you can do the following steps:
1. Kill the currently running process explorer.exe using Task
Manager
2. Run the explorer.exe from a Thinstall virtual
environment