Use on Windows without installing

My wife’s laptop given by her employer runs on Windows 7 and doesn’t allow administrative tasks. So she can’t install LibreOffice using the installer.

Is there a way to get a compressed package that can be just unzipped and used? Seems like a very common use case, so I tried looking around on the internet but found almost nothing. There’s nothing of that sort put up for download on LibreOffice.org as well.

Is it technically difficult to acheive, supposing the system already has JVM up and running?

You can try Libreoffice Portable from Portableapps.com. You can copy that to a folder or a USB stick. They have a portable version of the JVM too, if you need to use it on a computer without one.

in case portableapps is blocked as well, one can extract the msi on the command line with:

msiexec /a C:\Temp\LibreOffice_5.0.4_Win_x64.msi /qb TARGETDIR=c:\apps\libreoffice5

to make it work one may need to set full rights on the c:\apps\libreoffice5\program where the executables are, like scalc.exe.