visual studio - Open all Projects with VS2015 -

when doubleclick project in file explorer want use vs2015.

i looked in registry , value of hklm\software\microsft\windows\currentversion\app paths\devenv.exe correctly set to:

c:\program files (x86)\microsoft visual studio 14.0\common7\ide\devenv.exe

(like described here: https://social.msdn.microsoft.com/forums/vstudio/en-us/568e32af-d724-4ac6-8e8f-72181c4320b3/set-default-version-of-visual-studio)

i assume there somekind of version marker in visual studio project,

any hint on how force use 2015 (without uninstalling old verison)

the below lines *.sln file specifies version of vs ide used default , minimum ide can use project

microsoft visual studio solution file, format version 12.00 # visual studio 2013 visualstudioversion = 12.0.21005.1 minimumvisualstudioversion = 10.0.40219.1 

you can manually update visualstudioversion, format version & text in 2nd line # visual studio xxxx , have opened in ide need