It sucks as an error message. Would it take too much programming effort to make it more meaningful Virtual PC team?
What does it mean?
It means you have a Virtual Hard Disk file larger than 127.5GB. Which Virtual PC does not support.
You might have created this with the Microsoft Disk2VHD tool.
To confirm the “disk is too big” problem, open the Settings on an existing Virtual PC, and try to attach the drive:
In other words, we’ve captured a 160GB hard disk, and Virtual PC won’t let us use it.
But we can fix it, it’s a two step process