Telling me they were going to audit me under their Software Asset Management scheme.
I use the bare minimum amount of MS software where I work because it has built in redundancy. If you buy Microsoft Office 2010 chances are it won't open files created with the next version. Libre and Open Office don't seem to share that failing in Microsoft's product. That's why I use them - and I pretty much use them interchangeably because my peeps aren't particularly sophisticated users (nor am I).
So, having MS send me a letter basically accusing me of stealing because I don't use Outlook, Exchange, Office or whatever else they peddle, is pretty annoying. Why would I want to let myself get tangled up in that system?
Ironically, we're coming to end of life with our current accounting software (Sage Line 100) and are due an across the board refresh of the entire system. I was THIS close to buying into Outlook and Exchange and a limited deployment of MS Office because it integrates better (at all) with Sage Line 200 but that letter was a kick in the nuts. I am adamantly opposed to giving them money if that's how they treat customers - and I AM a customer. I've spent some proportion of my tech budget on their OS software, including the bare minimum server OS software to host our Sage installation. I must stress if I could go Linux I would but our accounting software, and in fact no accounting software that I can get local support for runs on anything but Microsoft OS's as clients and more importantly on the server side. There ARE web-based alternatives but they're clunky as hell, expensive and obviously vulnerable to downtime if t'internet goes down,
I'm not a tech guy, I'm an interested in tech guy. IT isn't my job, it's just one of the things I do here. Again, I don't have sophisticated users. Incredibly in a company with thirty people under the roof I am, at nearly fifty, the only geek. What can I say. We get our hands dirty, but Microsoft Office? Not THAT dirty.