what's the difference between these two setup files?

SFTPMSI.exe SFTPNSI.exe

MSI and NSIS ? and why the download webpage don't give us the NSI.exe link ?

Use the MSI setup. It is the official setup.

The MSI setup uses MSI. The SFTPNSI.exe uses InnoSetup.

Regards,
Mat

Why do you use two setup files?
I like SFTPNSI. It's better for me.

Some users are having problems with the MSI setup. And we would like to offer an alternative for this case.