Microsoft Windows CE 6.0 Device Emulator is no longer available as a standalone, current-day download because the operating system has reached its End of Life (EOL)
Ensure you installed the efp.msi (Emulator Feature Pack) properly.
Ensure the protocol is checked on your active network adapter properties. Step 3: Extract or Link Windows CE 6.0 OS Images
The Windows CE 6.0 Device Emulator is a tool designed to emulate the ARM architecture of embedded devices on an x86 Windows PC. It acts as a virtual machine, running the Windows CE operating system.
