It’s often a pain getting X windows GUIs like the Oracle Installer and DBCA to run on Micrsoft Windows PC clients. Emulators like Reflection-X, KEA-Term, and Exceed work ok, but they cost money to licence and require source media and local admin rights to install. Those things can take an age to organise in large bureaucratic organisations.
An easy way round this is to download and run “DSL (Damn Small Linux) embedded”. It’s like having a linux desktop, but runs as a program inside Microsoft Windows. It’s free, and works as well or better than the commercial emulators for me – except on one old laptop without much memory where mouse control back inside Windows became erratic.
“DSL embedded” can be downloaded from here (look for dsl-[VERSION]-embedded.zip). Unzip that and run “dsl-base.bat” to start it up under Microsoft Windows. While using it, “Ctrl+Alt” switches back to Microsoft Windows applications. To close it, right click its desktop and select “power down”.
More details at damnsmalllinux.org
Update: use the -X option in DSL’s terminal, e.g. ‘ssh -X firstname.lastname@example.org‘ – thanks to Horace in comments for pointing that out.
If you need to preserve -X option after sudo, then Jianming Li’s instructions work well.