RoboHelp 7 was released many years ago and was more than likely only tested up to Windows XP. Depending on what you are trying to do, you may be OK. You should certainly be able to install RH7 and use it, but if you have issues you will not be supported by Adobe. You can post any issues here, but if we can't help you'd be on your own.
It would be better to update to the latest version. There are many new features that have been added to RoboHelp since version 7.
I use the original Technical Communication Suite (FM8 + RH7). With all the necessary patches installed, it worked perfectly for years on XP. This is not the case on Win 8 (64-bit). I tried everything to get it working in the new OS environment - but to no avail.
My solution was to install an Oracle VM VirtualBox. I set it up as follows
- 4 CPUs (I have an i7 in the PC)
- 4GB RAM
- Windows XP
Then I installed the TCS in this VM environment. It works brilliantly. No more problems with FM and RH, plus I can run other 64-bit applications on the host machine.
Hope this helps
P.S. If you decide to go down this road, remember to deactivate your application before you install it in the VM environment.