if these apps only nearby middle-sized you will be not happy with the old machines whereas the CPU is not the main-problem. It's rather the RAM - windows + a security tool needs often alone 1 GB. But if you could extend the RAM to 4 GB it might work.
Maybe you could use an EDX trigger - see:
Well, upgrading anything is not an option - not for me anyway. I have no say in expenses.
But I hear some of our PCs have been upgraded - the OS has been upgraded from XP to Win7 on some machines anyway, so I guess the PCs were necessarily also upgraded or replaced since I don't think Win7 would run on the old machines.
I will have a little walk through our plant one of these days and see for myself.
I have thought about the possibility of using a macro and EDX_triggers. That might be a possibility.
I will also have to consider some security_settings to prevent the users from moving things around and messing up the layout. I guess I will need to implement SA with the NTNAME.
Thanks a lot!