Then click the button to download and install WinTopo:
If your security system does not permit downloading of the executable file, try downloading this zip file which contains the installer for both the freeware and pro version.
The freeware download will install both WinTopo Freeware and the evaluation for
If you have a 64bit version of Windows 10, Windows 8, Windows 7 or Windows Vista then select the 64bit download. For Windows XP and 32bit versions of Windows, select the 32bit download.