Thanks for letting me know about the problems of installing and running the APEC-HCCV program. I added a folder HCCV.zip? containing the executable program HCCV.EXE. http://bepan.info/hvac-prog/x1-apec-hccv-loads . Let me know if it works.
It runs in Windows 7 32-bit computer or earlier hardware, but it will not run on a 64-bit computer. You have to install Windows XP Virtuual Mode on 64-bit.
The same applies for the DOE2.1E program http://bepan.info/doe2inp
http://www.microsoft.com/windows/virtual-pc/download.aspx
How to install Windows XP Mode on Windows 7 Home Premium or lower
http://www.youtube.com/watch?v=CbEK0jD6GlE&feature=related
Windows Virtual PC Windows XP Mode For Windows 7
http://www.youtube.com/watch?v=8RcSZqAnYLo
How to Install Windows XP on Virtual PC
http://www.youtube.com/watch?v=n24oQdgTdZs&feature=related