GotoHTTP for Windows is a portable software, minimum OS version required is Windows 2000, please click the link on the right to download it. The package contains only one file,please extract it to a directory,and then run it. You will see the Computer Id and Access Code.(Be sure to extract the file first, then run it, or Access Code may change from time to time. You had better not use 32bit of GotoHTTP on 64bit of Windows.)
For Windows 10 or later, you can also install GotoHTTP in Microsoft Store by searching 'GotoHTTP'.
Please see
Setup Instruction for more details.