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How to check .NET 6.x.x version installed or not for desktop application ?
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Dear Fellows

How to check .net 6.x.x version installed or not by Registry ?
for both x86 and 64 bit OS.

What I have tried:

I found 2 registry values by google but their exists multiple on different PCs. So I want to handle all registry keys in my application.

HKLM\SOFTWARE\dotnet\Setup\InstalledVersions\x64\sharedhost\Version


HKLM\SOFTWARE\Microsoft\ASP.NET Core\Shared Framework\v6.0
Posted
Updated 24-Sep-22 20:35pm
v2
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RickZeeland 24-Sep-22 5:15am    
It's a big mess I'm afraid, tried to follow the ongoing discussion here:
https://github.com/dotnet/runtime/issues/3393
But the relevant link at the end of the discussion seems to be gone :(

2 solutions

Quote:
The version of .NET Framework (4.5 and later) installed on a machine is listed in the registry at HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\NET Framework Setup\NDP\v4\Full. If the Full subkey is missing, then .NET Framework 4.5 or above isn't installed.


Determine which .NET Framework versions are installed - .NET Framework | Microsoft Learn[^]
 
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Posted
The registry location seems to change per update as a user commented here:
Correct approach to Check for .NET 6 installation - Microsoft Q&A[^]
Quote:
[HKEY_LOCAL_MACHINE\SOFTWARE\Wow6432Node\dotnet\Setup\InstalledVersions\x64\sharedfx\Microsoft.NETCore.App]
"3.1.26"=dword:00000001

[HKEY_LOCAL_MACHINE\SOFTWARE\Wow6432Node\dotnet\Setup\InstalledVersions\x64\sharedfx\Microsoft.WindowsDesktop.App]
"5.0.17"=dword:00000001

[HKEY_LOCAL_MACHINE\SOFTWARE\Wow6432Node\dotnet\Setup\InstalledVersions\x64\sharedfx\Microsoft.WindowsDesktop.App]
"6.0.6"=dword:00000001

[HKEY_LOCAL_MACHINE\SOFTWARE\Wow6432Node\dotnet\Setup\InstalledVersions\x64\sharedhost]
"Version"="6.0.6"


Don't understand why these .NET Core guys do not follow any standards :(
 
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DoingWork 26-Sep-22 7:20am    
What is meant by dword:000001 ??
I have installed and then un-installed v6.0.8, but still dowrd value is 00001. (means no change)
RickZeeland 26-Sep-22 8:14am    
Maybe your PC needs a reset? or another app is still using .NET 6 ?
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