Re: xxxxOffice
They've not locked that down too well have they? Used to work on a similar network, but it had a whitelist of executables, making it far harder to run 'naughties'.
Right, shower's on in preparation for what I'm about to say:
You could take the corporate approach, which would be to generate a risk analysis report stating that if the regulator were to do an audit, we'd be unable to open any documents created pre (insert year) leading to potential fines of fuckinghellthatshigh.
Mitigation: Use LibreOffice, provides support yadayadayaday
Licensing costs: Fuckall
Impact: None for most users
And then what they'll do is (probably) have a skim read, and bin it. But the next time you need one of those older documents, you adhere to IT policy (so don't load LO) and instead escalate the issue up the chain (can't open this document, told you about this etc).
I've found, through bitter experience, if you circumvent a policy to get your job done it's generally ignored. but if you get a boss who doesn't like you, or someone with a grudge, they're then able to use that as ammo against you. The more 'ammo' they get, the bigger a threat they become, especially as the buggers dealing with your grievance after you've been disciplined won't look at as "doing what he needs to do his job", they'll see it as "fair cop, was circumventing security policies" as I'd imagine would any tribunal.
As distasteful as it is, sometimes you just have to let things fail. Otherwise you're potentially risking your own employment for the benefit of the business, and making it quite easy for them to get rid of you ("We take security very seriously here"). It also lets the pointy heads continue to pretend they're doing a good job by only shopping with MS!