Because they are available for a limited time. No downloads per day means removal and this website's attach option failed miserably.
The bug you claimed to have been solved with the checkbox turned off/on for optimize buffer are not working with Sun-SSH2.1.0 or any non-recent SSH unix/linux implementations.
I have scrapped WinSCP completely unfortunately from our .NET solution and using pscp.exe from PuTTY works flawlessly with any SSH 2.0 library. There are a lot of threads regarding Fatally failed errors messages for big files that occur both in the GUI and .NET assembly with the latest build(s) - tried many, including 4.x versions - from unix to windows transfers.
I wanted to offer you some help in identifying the cause. All I can say now is that the bug still exists and for machines that can't be upgraded using WinSCP will fail.
The bug you claimed to have been solved with the checkbox turned off/on for optimize buffer are not working with Sun-SSH2.1.0 or any non-recent SSH unix/linux implementations.
I have scrapped WinSCP completely unfortunately from our .NET solution and using pscp.exe from PuTTY works flawlessly with any SSH 2.0 library. There are a lot of threads regarding Fatally failed errors messages for big files that occur both in the GUI and .NET assembly with the latest build(s) - tried many, including 4.x versions - from unix to windows transfers.
I wanted to offer you some help in identifying the cause. All I can say now is that the bug still exists and for machines that can't be upgraded using WinSCP will fail.