32-bit versus 64-bit computers - APEC HCC-V

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I bought the APEC (Automated Procedures for Engineering Consultants) APEC programs as memorabilia when it folded up in 2002. APEC was founded in 1965. The APEC HCC-V (Heating & Cooling Calculations version V) program can still be used. At SOM it was used until 2002.
I was able to install and run the HCC-V program on a 32-bit computer but not the 64-bit computer. Does anyone know how to fix a 32-bit program to run on a 64-bit computer. I have the source code.
HCC-V is based on the TETD method. If you don't know what a decrement factor is, enter 0.5 (the range 0 to 1). For an office bldg that closes at 6 PM make the time lag 3 hours (HCC assumes the peak hour is 3 PM) so that it affects the building during office hours.
You can find information about the APEC HCC-V program in the website
http://bepan.info/
under X - HVAC-Programs
Varkie Thomas

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Thanks for all the replies saying it should work with Windows-7. My computer has Windows Vista. I also got replies saying that they got the APEC HCC-V program to work on their 64-bit computer. It seems the APEC HCC-V is still being used. The program is in FORTRAN-66 and the first version (an input interface was added later) was issued in the late 1960s
I have uploaded the two APEC HCC-V installation disks into http://bepan.info I have also uploaded the EXCEL templates that generates tables and charts from DOE2.bin.
I will upload the other original files and executable programs to the website after I know where this going. I cannot take responsibility for public access to the website.
I developed the information for graduate courses and the Ph.D. program at IIT while I was a full time employee at SOM. The Ph.D. candidates who worked with me and Ray Clark (former Partner & Director of MEP at SOM and is now Adjunct at IIT) have the information. They are now assistant/associate professors at other universities. They are going to use it as reference to develop their own courses and we will be working with them.
Varkie
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Joe Dillinger (http://www.learnhvac.org/ and http://su-per-b.org/)
Ellen Franconi (http://www.rmi.org/rmi/)

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Varkie,

If you have windows 7 64bit. You can run most if not all 32bit windows
applications using windows xp mode within windows 7.

http://windows.microsoft.com/en-US/windows7/products/features/windows-xp
-mode

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