Hi,

1)
The esp8266 is removed from the ide list in atmel studio for two reasons. 1) It is obsolete since esp8266 has an arduino 1.6.5 board manager option and 2) it is not allowed by atmel that you use competitor hardware with atmel studio. 

Visual studio 2013 is the right choice for esp8266

2)

Visual micro board manager installed is the same as sp7. It looks like the esp8266.json has changed and requires some testing (again). The esp8266 is a new and fast changing system so we expect things to change for some months. However, you do not need to use visual micro to install the .json you can install it using the board manager in the Arduino Ide.

3)

All previous releases are on visualmicro.codeplex however you do not need a previous release especially if you want compatibility with the ever changing esp8266

Thanks

Thanks

I think the problem is that esp8266 has changed their hardware and caused a problem. I will try to test it later today.

No sorry is visual micro bug ... it's not possible that yesterday work and now after  upgrade visual i can not use .. not display library .

Can you link me a sp7 version , on codeplex i see sp3 30 may  .. but you in website recommend sp5+ .. please link to me a old correct version before 5 july and 23july version .. i must work and now i'm blocked

i'm correcting my strange english because mac corrector do many mistake with italian user writing english

Can you link me a sp7 version , on codeplex i see sp3 30 may  .. but you in website recommend sp5+ .. please link to me a old correct version before 5 july and 23july version

Ok now work with sp7 but in other old windows vM , seems that upgrade to new platform and visual micro create a bug that can't be cleaned , i not understand but i can't resolve in my vMachine .

Probably reinstall manual o repairing can't resolve . When i reconfigure i ll trie with visual studio and last version to help you . 

many thanks , i've bought license at last year and is been a good idea

ok at now . also possible main esp on amt. with add on arduino ide 1.6 config
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your solution : not resolve
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My config :  last arduino ide 1.6.5 
board manager -> esp8266 staging son installed
visual studio last version (but i suggest you are something on board manager .. i've tried from visual micro board manage to install esp8266 , install it but after rescan nothing ... i think something remains on system or arduino board manager ( but arduino work perfect) and create error )

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about new VM , now i've installated visual studio and last visual micro .. all ok .. 
also visual studio all ok

No , problem is Visual micro when you try to remove , probably not remove all data and with many update  something wrong .. 

i do new installation and all ok , therefore something is confusing as you say

Thanks for the update.

1)
I will look at the remove. The problem can be the length of all combined paths. The standard windows c# delete fails with the paths become very long. But java on window in the arduino ide works so that doesn't say much for .net

2)
The installer was moved to .net 4 and has failed to update intellisense for some users. Sp5 was released yesterday which configures intellisense every time visual studio is run so that should fix the problem for everyone.

Thanks again