Install the 1.6.0_31 JRE by executing jrefb-6u31-windows-i586.exe. The extracted installation files [Data1.cap (12845 KB), jre1.6.0_31.msi (886 KB) and jre1031.MST (62 KB)] are not being deleted from the user's Application Data folder (on Windows Vista/7 the location of the Application Data folder is C:\Users\<user>\AppData\LocalLow\Sun\Java).
It seems those files are not necessary anymore after the installation.
This has also the effect that for non existing user directories (e.g. system account) these files will land in the default user. A user that logged on to the terminal server where this installation ran, gets all contents of the default user into his own profile, which can cause a data overflow. Note: with direct use of msi files, this behavior does not occurr, but installation using msi is not supported.
We suggest to turn this behavior off, either by default or at least by an install option.