Cygwin/X can be used for connecing to Unix/Linux servers and displaying windows.
You can try cygwin if Xwin32 is slow when using SeisSpace. Another alternative is MobaXterm.

If logging in doesn't work the first time, try again.
E.g. if you're going to connect to promax:

1. shortcut on desktop: CygwinX promax.bat
2. c:\cygwin64\CygwinX promax.bat

If that doesn't work, or if you want to connect to another server:

• c:\cygwin64\startxwin.bat
• go to notifications, rightclick and select system tools → Xterm
• write this in the xterm window: ssh -Y username@some.server.ntnu.no

• there's two versions of Trace Display in SeisSpace. The Promax-version (blue icon to the left of the name) flickers when using cygwin. To stop flickering: click and hold the mouse button on the View menu and move the mouse down to Refresh and then release the button.
• if a blank windows opens, try to move it.
• it may take a couple of seconds before the window opens the first time you want to edit a process.

• install cygwin with these additional packages: openssh, xorg-server, xinit, xlaunch, xorg-x11-fonts* (minus cyrillic and ethiopic). You may automate it by running this from CMD: setup-x86_64.exe -nq -s http://cygwin.uib.no -P xorg-server,openssh,xinit,xlaunch,xorg-x11-fonts-Type1,xorg-x11-fonts-dpi100,xorg-x11-fonts-dpi75,xorg-x11-fonts-misc
• at the end of installation select “create icon on desktop” and “add icon to start menu”.
• you may have to open the firewall for c:\cygwin64\bin\xwin.exe (and maybe port 6000 tcp/udp).
• installation may not always be successful, i.e. login to remote server doesn't work.

You may create your own login script by editing this:

@echo off
rem ask for user name
echo.
echo.
echo DO NOT CLOSE THIS WINDOW
echo.
@echo:
set /p user=User Name: 
@echo on

rem start Xwin server and xterm login window
rem http://www.trueblade.com/knowledge/automatically-starting-a-cygwin-x-server
C:\cygwin64\bin\run.exe -p /usr/bin XWin -multiwindow -clipboard -silent-dup-error
C:\cygwin64\bin\sleep.exe 1
C:\cygwin64\bin\run.exe --wait --quote /usr/bin/xterm.exe -display :0 -e /usr/bin/ssh -Y %user%@promax.igp.ntnu.no
C:\cygwin64\bin\sleep.exe 1

rem kill Xwin and delete lock files 
taskkill /f /im xwin.exe
rmdir /S /Q c:\cygwin64\tmp\.X11-unix\
del c:\cygwin64\tmp\.X*

exit