GridFTP.NET and GRAM.NET Client Install
1. If you do not already have one, get and install a personal certificate on your windows machine. You should also install any CA certificates you wish to trust.
2. download the GRIDFTP.NET and GRAM.NET installer
3. double-click the installer -- the following dialog box will appear

Make sure to check both boxes. Then click the "Next" button and follow the remaining instructions.