InfoPath Dev

 I don't know if I'm alone in that condition but when I try to add code in InfoPath 2013, it try to open VS 2012 (VSTA) and it's stuck there.

 Windows 7 x64, .NET 4.5, Office Pro Plus 2013 x86 from ISO registered with O365 account for licence and Visual Studio 2012 PRO as well.

 All try to uninstall, repair or similar actions was done with VSTA and Office.

I try to follow a FIX that I've found on Microsoft site related to the Beta2 version of VSTA and it's consist to copy some VSTA files into Office program folder without a result.

Thank you for any help. 

 You'll need Visual Studio 2012 for IP 2013 managed code development: http://msdn.microsoft.com/en-us/library/office/aa947697.aspx - look for the New Way to Write and Edit Code section

 VSTA 2012 = Visual Studio Tools for Applications 2012

and this link is for Beta2.  I have the RTM version on my computer....

Please, read my question before answering what I have already done :)   So, don't tell me to repair installation !

 I do understand what VSTA stands for. I am running the RTM version of InfoPath 2013 on my machine. I have installed Visual Studio 2012 and the add in mentioned in the link. I am able to write managed code on my machine for my templates. I am also running Windows 7 64 bit

However, I see you do have Visual Studio 2012 installed - so the real difference between our installs is I am not using the Office 365 version of InfoPath - oh, and I'm running 64 bit Office.

You'll note I did not tell you to repair your installation.

 lol

 Ok.64 bits of Office can make a difference for sure...

 I can uninstall Office x86 and install Office x64 (funny, not a repair but one uninstall and reinstall but at least for a x64)

It was full of bug at their first x64 edition;  I guess they have a better version with this one.   I will let you know.