I download Disk Investigator from Download.com:
When I tried to uninstall the program by running uninst.exe, a message poped up from SuperAntiSpyware indicating the program has "Trojan.Agent/Gen-Clicker".
When I scanned uninst.exe with SuperAntiSpyware, it actually says the file passed the scan. So it appears that the warning only appears when it's executed. I sent the file to VirusTotal, and SuperAntiSpyware was the only one that showed the trojan.
I could not send the file through False Positive interface, because that option was not available when SuperAntiSpyware warning came on running uninst.exe. So I attached the file here. Alternatively, the file can be downloaded from Download.com.