EUREKA !!!

It works :)))

I'm still not exactly sure how I fixed this but I managed to get it running
by following the instructions under "method2" in the following link :

http://gamunation.com/x3daudio1_7-dll-missing-error-fix-windows-78skyrim/

What little I understood is this : even though I'm on a 64bit OS for some bizarre reason I needed to download the 32bit .dll version instead of the 64bit version. (my error message didn't say the file was missing / couldn't be found, it just said that it was "unsuitable" for windows )
I installed the 32bit.dll into dayz folder, windows/system32 AND windows/wow64 folder.
Rebooted my PC and started dayz for the first time in approx 72 hours.
(just in time , I was starting to experience severe withdrawal symptoms )

JStewart , my first kill in 0.58 will be dedicated to you !

I'm off, thx for your time dude !

Done, killed a guy in elektro police station, he had a magnum,
I had a cr75, the last words he heard were :

"You have been sacrificed to the dayz gods, I dedicate this kill to JStewart"

Mahalo

Nope, that didn't work either ...

I have deleted dayz , updated all X3DAudio1_* files by hand and re-installed DayZ but kept getting that same error message.

Tried some stuff in that link you posted too :

• downloaded runtime package & installed it ... same result.
• ran dxdiag but couldn't see anything that "jumped out"

I find myself at my wit's end ... JStewart, I'm in need of your magical powers
;)

PS what also drives me nuts is that this only happens with DayZ, I can play left 4 dead or arma2, even DayZmod I bet ( didn't actually try to play the mod ) but DayZ Standalone seems to be "off limits" to me at the moment ...

Deleted & re-installed DayZ 3 times but I still get the same error message ...

Found a post somewhere that said to uninstall the game, delete all X3DAudio1 files and replace them one by one. Only after this is done can you re-install the game ... Will try that now.

That link you posted above seems to be more for win8, I'm running win7 home premium 64bit but I'll definitely give it a look.

will post results good/bad

Hello JStewart,

I've uploaded a screenshot for you but ...

1. My windows is in dutch, the actual messages translates into english as :

c:\windows\system32\X3DAudio1-7.dll is unsuitable for windows or contains an error, try to reinstall the program from the original installation medium or contact your sysadmin or software vendor for support.

2. I must have seen this pop-up 100 times in the last 48 hrs and it's only after taking the screenshot that I noticed the "header" of the pop-up! It translates into english as : "DayZ.exe invalid installation copy" ...

if you require any more info, don't hesitate to ask.