I am Developing Apps on "Microsoft Visual Studio Express 2012 For Windows Phone". I develop Windows Phone 8.0 Apps.
Now I need to develop Windows Phone 8.1 Apps free. Which Visual Studio to use for this purpose.? and What about windows Phone 8.1 Emulator.
If possible share both download links.
You Should use Visual Studio 2013. here is a download link for Express 2013 for Windows
that can be used for windows and windows phone as well as Universal Apps. for windows phone 8.1 emulators, you can download them from here Windows Phone 8.1 Emulators
To develop Windows Phone 8.1 App, You should use Visual Studio 2013.
And here is the download link: Visual Studio Downloads
On the Dev Center of Microsoft you can find all information, samples and tools you need to develop Windows and Windows Phone apps.
Info from the site regarding to WP development:
Windows Phone 8.1 development tools:
The Windows Phone 8.1 development tools are installed with Visual Studio Express 2013 for Windows with Update 2 and Visual Studio 2013 Update 2.
Windows Phone 8.1 Emulators:
This package requires Visual Studio 2013 with Update 2 or later, Windows 8.1 (x64) Professional edition or higher, and a processor that supports Client Hyper-V and Second Level Address Translation (SLAT).
Here are several links to useful parts of the site:
Note: with these tools, you can still develop Windows Phone 8.0 apps as well.
You have to use Option in visual studio 2013 express from here.
Edit:
After Installation open your windows phone 8.0 project in visual studio 2013 fallow the process described here. As same as windows phone 8 emulators will comes under windows phone Sdk
Check this link about Documention.
Note: I suggest you to back up of your windows phone 8.0 project to separate Folder to continue the development of windows phone 8.0.
Why:
You cannot downgrade a upgraded app with version 8.1 to version 8 or 7.1.
All the Best.
