You can find the setup file on various GSM forums or trusted software repositories. Look for the filename format usually resembling Setup_dctxbb5_v2303.exe or similar.
While remains popular in the vintage mobile repair community for devices like the Nokia 8800, it has since been succeeded by newer versions such as v2.3.0.7. Users looking to download this tool should verify the source to avoid malware, as SarasSoft's original official support channels for this specific legacy version are no longer active. dctxbb5 tools v2 30 3 hwk by sarassoft download new