Ok we have an issue with out netbackup install on Windows 2008 R2, after searching the net for the problem, it recommends uninstalling and re-installing Windows Installer.

We can happily remove Windows Installer 5, but the trouble is this version doesn't seem to have been released for download as yet. When did try installing an older version to no avail.

So as there is no release of 5, and I am expected to uninstall and re-install, where can I obtain a copy?