dll.xml is corrupt and cannot be opened.

[mustiej 0]

2 minutes ago, Adrian123 said:

I have used this with luck also:

https://www.freeformatter.com/xml-formatter.html

 

5 minutes ago, Lorby_SI said:

That could just be the file encoding gone wrong, caused by an incompatible installer that was unaware of proper character encoding. Try to change the encoding in Notepad++ (menu "Encoding" at the top) to UTF-8 or UTF-8 BOM, and if that fails, try UCS-2 LE BOM.

Best regards

I've tried to change the encoding, didn't work. 

I tried to upload the file and format it but I get the following error: 

Error on line 1: Content is not allowed in prolog.

[Adrian123 1,015]

Worth a try

[Lorby_SI 2,036]

27 minutes ago, mustiej said:

I've tried to change the encoding, didn't work. 

Then it probably has a mixed encoding. If that really was a program/installer that thought it was dealing with a different encoding, file could indeed be worthless now. Btw, default encoding of that file is Windows codepage 1252 / ANSI. So you cannot edit it with a program that would add UTF-8 / Unicode encoded characters. The number of bytes to save one character is different, and if you mix them up, a simple editor can no longer read it. A hex editor might make sense of it.

But there aren't that many addons which are still using the dll.xml, it is no longer necessary in P3D V4. FSUIPC, Carenado aircraft, ActiveSky are the usual suspects. FSUIPC and ActiveSky you can just reinstall, and one Carenado aircraft. Not sure about PMDG, their modules have been in there with FSX. Over time, if you encounter an addon that seems to be missing something, reinstall it. ORBX is of no concern, they are using an add-on.xml for their ObjectFlow module.

If you are trying out legacy addons that were not made for P3D V4, consider using a backup tool that keeps your configuration files safe.

Best regards

Edited December 20, 2018 by Lorby_SI

[Jim Young 2,356]

This was fixed by me by opening the Lorby_Si Addon Organizer and going to Tools and click on Check Encoding.  Once completed, click on "Save" under Scenery Tab and it should be fixed.

[mustiej 0]

That didn't work either. I deleted the exe.xml and dll.xml and to my suprise, somehow all my addons works. Even Sky Force... I made a backup just in case.

I geuss it's resolved 🙂 Thanks for the suggestions!