If you could provide more details about the iShow laser software, such as its primary use or the device it comes with, I might be able to offer more tailored advice.
Compared to earlier 2.2.x releases, version 2.3.12 includes:
Run the Installer:
Install the USB Driver:
Connect Your DAC:
First Launch Configuration:
Even with the correct "download 12", you may encounter issues. Here is the troubleshooting bible for iShow 2.3: ishow laser software version 2.3 download 12
| Problem | Likely Cause | Solution | | :--- | :--- | :--- | | "DAC Not Found" | Wrong COM port or driver conflict | Uninstall old FTDI drivers. Use Zadig tool to install WinUSB driver instead. | | Flickering Output | USB bandwidth or old build bug | Go to Settings → Output → Enable "Buffer 64". Reduce preview window size. | | Crash on Timeline | Windows compatibility layer | Right-click iShow.exe → Properties → Compatibility → Run as Windows 7 + Disable fullscreen optimizations. | | No Laser Output (Black) | Inverted blanking signal | In Laser Settings, check "Invert TTL" or "Swap XY". |