NETFx3 Add Feature, Error With Mounting Source (Install.wim) Return: 2

Hello,

I'm not very tech savvy  , but I've manage to add two plugins that I wanted for my build. After I made the ISO the programs wouldn'trun and gavethe error (0xc0000135). I found that this means the programs need .Net framework in order to run. I believed this feature, NETFx3, in Utilities is what i was looking for but when I try to enable it but i get an error saying "Error With Mounting Source (Install.wim) Return : 2"

I figured I then needed a sourced for this feature so I snooped around and found the WinXPE Optional Member XPE App Plugins and found XPE .NET Framework 3.x Add-Feature - Utilities. Then I realized its a script but idk if i should put it in the code box or use this as the source. I'm afraid ill mess something up so I haven't done either.  So I guess my questions are, am I looking in the right place to fix my .Net Framework problem and where can I go from here?

Thank you so much!

Basically you need to mount the Install.wim and use DISM to Add-Feature NET3...
What you found was a utility to do that for you - based upon that Project..

So I guess my questions are, am I looking in the right place to fix my .Net Framework problem and where can I go from here?

Correct Place 

Wrong Section 
you create topic at "Tool World » Research and questions"
I now move your topic to "Project World » Win10XPE HomePage" 

Each project has its ways about your question. 

I believed this feature, NETFx3, in Utilities is what i was looking for but when I try to enable it but i get an error saying "Error With Mounting Source (Install.wim) Return : 2"

Verify your Source "Folder" is selected on Opening Win10XPE interface...
If you did not copy the Source ISO Files to a Separate Folder - then that is what you have to do...
As you can not commit the changes within a mounted ISO

Thank you guys, I figured out my problem with the source. So now I only have one issue left. I installed Microsoft PID checker and Intel Diagnostics tool and both need .Net Framework to work. I was wondering if the .Net Framework is already somewhere in Install.wim and the NETFx utility just enables it OR do I have to get Microsoft.net on my build and THEN the utility enables it. If that's true then my question is what do I need to do to get Microsfoft.net onto my build so that PID checker will work?

Please be specific, I have the IQ of a carrot.

On Build Core \ Main Interfeace > "enable" = Microsoft .NETFx4
That will include NetFramework v4* included within the Install.wim

If you need NetFramework v2.0-3.5 - then you must Enable the 3.5 Feature by using the Utilities\NETFx3 Add-Feature
Thus enabling the NET3.5 feature in the Install.wim

Thank you so much!