Nt8 will not run

[peregrine]

I am getting this error. What can I do?

http://screencast.com/t/NUWiePhKq9

Also just yesterday and prior I was able to run both nt7 and nt8 simutaneously.
Now I can only run nt7, nt8 will not run at all.
I want to run both nt7 and nt8 at the same time as there are indicators and things not supported on one and not the other.

[peregrine]

On running both is this current? As just yesterday I was running both, with no adjustments. The last thing I changed was I installed a customized chart trader indicator on nt7 and it says to use AT interface.

http://ninjatrader.com/support/forum/showthread.php?t=75060

[NinjaTrader_Jesse]

Hello,

Thank you for the question.

This error would generally happen if something else other than NinjaTrader is accessing NinjaTraders files. This can happen with Antivirus or backup software. Have you ensured that there is nothing set to scan or backup the NinjaTrader 8 folder in your documents?

I look forward to being of further assistance.

[peregrine]

Hello,

Thank you for the question.

This error would generally happen if something else other than NinjaTrader is accessing NinjaTraders files. This can happen with Antivirus or backup software. Have you ensured that there is nothing set to scan or backup the NinjaTrader 8 folder in your documents?

I look forward to being of further assistance.

I have not done anything different. Than yesterday aside from installing the indicator on nt7.

[sledge]

I have not done anything different. Than yesterday aside from installing the indicator on nt7.

Try this

http://www.techsupportalert.com/content/how-find-out-which-windows-process-using-file.htm