I am trying to resize a VHD file that is 54 gigs but evrytime I select it ite tells me ''Invalid Vhd file, please select another''. Is there a size limitation?   Thanks

Hi, I got the same message ''Invalid VHD File''. I copied my VPC from my Vista 32 machine to my XP machine. Then I converted the VHD (16 Gb dynamic Server 2003 R2) to FIXED - it took hours. But after that I could resize it!