Incompatible software and window 7

Hello,
I am trying to install HEAT 8.4 (older 2006 IT administration software) on to Windows 7 64 bit OS.
•      Please note that the program was already successfully installed on 3 different machines running Window 7 64 bit. Some tweaking needed to be done to get it to run. In my case I can’t get it to install in the first place.
The error message that I am getting is
“Installation completed. The wizard was interrupted before HEAT could be completely installed. Your system has not been modified. To complete installation at another time, please run setup again.”
I set up the Setup to run in Administrator and in Windows Xp sp2 compatibility mode, still same error. I checked and made sure that permissions are full control for the installation folder and that the user’s account is an administrative account. I tried domain and local admin accounts with compatibility mode and as administrator.
One file in the installation folder that I am not able to run as administrator is HEAT.MSI. I can only choose it to run in Previous version of windows. When I try to run HEAT.MSI by itself I get error message “fail to install iskernel files. Make sure you have appropriate privileges on this machine.” I tried different administrative accounts with full control permissions with no luck.
When I troubleshoot compatibility, I get a message that the program is incompatible. Yes, I know it is old, I know that there is some ODBC driver shuffling that needs to be done after installation and I also know that this program can be installed on Windows 7.
The only thing that might be different on my machine is that I made sure that I got every possible Windows update before HEAT installation; however, one of my co-workers states that his machine was up to date prior as well and we have identical machines.
I don’t think I am doing anything different, it is almost like I have to find the way to not let Windows 7 to halt installation, in other words force the install.
Thanks in advance.
Andrei