Amazing - most government computers transitioned through Vista and onto Win 7, yet more than half of IRS computers are still running XP. Massive incompetence at work here - that and the “diversionary forays” into illegally hindering Conservative organizations. Computers are the lifeblood of modern day business - it seems a bit criminal for such as the IRS to neglect the necessary upgrades.
It is not an unusual situation at all. I worked for a tech company that as of two years ago still did not have any computers beyond XP and had a number of tools still on NT and even some on DOS/Win 3.1 and we had a huge IT staff. The problem is that we had a lot of proprietary software that was mission critical that was very expensive to upgrade to work with new operating systems and tools that couldn’t be upgraded for a reasonable cost or was impossible because the vendors were no longer around.