PCBCAD51 download page
The downloaded file(s) do not have a virus in them.
Tell your anti virus software to ignore the warning.
Your windows must be up to date with all service packs installed.
If Windows smartscreen tries to block download click on "more info" then click on "Run anyway"
To download demo version download software then input blank password
Download method using self extractor
Click here if using Windows XP and download .net framework first
1/ Click here to download PCBCAD51 exe file.
2/ Click on 'Save' then after downloaded click on 'Run'.
3/ Click 'yes' for user account control if asked.
4/ Click on 'setup'.
If you have any problems let me know.