Having a hard time
 

getting this error "You can not attach a debugger while playing Project 1999."

Help.

Add an exception to your antivirus for the p99 folder or DSETUP.dll and eqgame.exe

And as derpcake mentioned this question has been asked a lot. (About 108 results)
https://www.google.com/search?q=You+...999.com/forums

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Some people said in some of those threads if you're using Win 10 you may need to install updates and restart you computer.
Others have said they have to disable their antivirus to play. I myself do not have to disable mine as I just added an exception for the dll.
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Let us know if you got it running. If you can't tell us what OS you're running and if you're running antivirus, which one.

Thank you for helping me with that issue.