Get the latest installed .Net framework version
Question, what is the first thing you check before deploying to a production environment? If your answer was "What's the latest supported .Net version on the server?", then congrats!!, you are on track and you can stop reading now!!
But if it wasn't, then keep reading...
If your team doesn't have full control over the production servers you use
(which, in my experience, is 90% of the time), then you have probably seen
this issue before. Your code is x number of versions ahead of the latest .Net version
installed on the server... Bummer... Of course by the time you realize this,
it's already too late... your code is live and users of your app are already
getting a nice 500 Internal Server Error message...
So, how can you avoid this? Check the latest supported .Net version on the server and update the target framework version on your solution...
Steps
- Hit
Ctrl + R - In the run box, type
regexit.exe - In the registry editor, open the following subkey:
HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\NET Framework Setup\NDP - Based on the .Net Framework you want to support
4.1. For .Net Framework 4.5 and later
4.1.1. Open the entryv4\Full
4.1.2. Check for a DWORD value named Release. If it exists, then .NET Framework 4.5 or newer has been installed on that computer. 4.2. Anything else 4.2.1. Open the corresponding .Net Framework version. (see references for more details)
References
How to: Determine which .NET Framework versions are installed