Install labview 6.1 (or compatible) run-time engine with labview 2011

[labview_user_1234]

I have installed a trial period version of Labveiw 2011 in order to check for possible upgrade issues I may have if I decide to upgrade from labveiw 6.1. Well, needless to say there have been alot. That is as expected since I have not updated labview in many years. I am still not under any pressure to update; however, I would like to in order to get support and make sure I do not have any compatibility issues with new  equipment purchases. I have been able to resolve most of my compatibility issues with simple code fixes and such. However, twice now I have run into an error when launching labview executeables compiled by two different equipment manufacturers. The equipment I am using is not even old...maybe a year or so. When I launch the labview executables to control this equipment on a PC that has the trial period labview 2011 installed, I get an error message stating something like " This requires a Labview 6.1 (or compatible) run time engine." I have tried to download and install the 6.1 labivew engine but I can't install this engine on a PC which has labview 2011 installed. Can someone explain how I am to run these executables under labview 2011. I can't imagine these executables were developed using 6.1 since this equipment is not even a year old now.

[Bob_Schor]

Are you running Windows 7?  Does your "legacy" code run on Windows XP?  This is "answering a different question", but if you wish to use Windows 7, you will not be able to develop code with LabVIEW 6.  Indeed, versions before 2009 are not supported on Windows 7 (though if you try real hard, you can install LabVIEW 8.6, I think).

[labview_user_1234]

Im not for sure I am on the same page with you here. Im not trying to develop any code myself. I have some labview executables that came with hardware we purchased in order to control it. We used to have labview 6.1 installed; so everything was working ok. But now that I have installed 2011, I get an error message when trying to run these executables. The error message states that this executable requires a labview 6.1 or compatible run-time engine. I have seen this error on both XP and Windows 7 machines. I did not develop the executable, it was developed by the hardware manufacturer. But since this hardware is only about 1 year old, I an assuming they used a newer version of Labview to develop this code. Certianly newer than 6.1.

So I guess my question is..is there a way for me to get this executable to work on a PC that has labview 2011 installed. I have tried to install a labview 6.1 run time engine but it will not install. Any other options?

[Dennis_Knutson]

First, what exactly happens when you try the install? Second, check with the vendor about which version they used. Don't assume they used a newer version.

[labview_user_1234]

well i checked the manufactures website for updated downloads. And my assumptions were incorrect. Apparetnly, it states that labview 6.1 is required to run the executable in question. So, I guess we will not be updating labview since this executable is required to run needed equipment.

[Dennis_Knutson · Accepted solution]

You should be able to have any number of run-times installed and 2011. I have multiple versions going back to 7.0. I asked what exactly happens when you try the install.

Have you tried removing 2011, installing the 6.1 run-time, and then installing 2011?

[labview_user_1234]

Dennis.....you are correct. I was able to install both 6.0 and 6.1 run time engines and use the executables. I had tried this earlier and it would not install. Maybe I had downloaded the wrong thing from NI previoiusly... i'm not sure. But today, I downloaded both of these run time engines and they installed without any issues. Thank you.