Hello, I'm using it in Windows XP Pro 64-bit and it's become an essential tool in my everyday work. I love the program and don't reboot/restart often.
Over time I have noticed the virtual memory size of WinSCP has gotten very large, at one point over a gigabyte. It does not start off this way and occurs over time. The main function I use is opening remote files in my file editor and have WinSCP upload changes automatically.
So I'm not sure if it's my platform or the fact that the tasks I'm running have a leak but I'd love to see this fixed. Having to restart WinSCP to free the memory is very inconvenient.