Target CPU: What shall I set it to?

Question

savedlema 17 Junior Poster

8 Years Ago

Hi all!

I made my application and never worried about the Target CPU thing, it is set to AnyCPU. The application writes and reads value from registry (HKLM/Software/MyAppName) and it has been workin find on my Windows 7, 64-bit.

But, today I deployed the applicaiton to Windows 10, also 64-bit and the app could not write to the registry but it was instead, writing the registry values to that Wow6432Node registy entry. Somebody suggested that I change the TargetCPU to x86, I did and the software works well in Windows 10 64-bit, but now it is not working (I mean it can't access the registry) on Windows 7 64-bit, my own development machine when I debug (F5) from VS 2013.

What should I do? How should I set my application so that it will work well on 32-bit and 64-bit? Do I need to make two different installers, one for 32 and another for 64?

Thank you!

vb.net

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rproffitt 2,580 "Nothing to see here." Moderator · Answer 1 · 2015-09-03T16:48:40+00:00

To dive into this one you need to look at the line where it fails. Is it an access issue or something else.

https://msdn.microsoft.com/en-us/library/2kk9bxk9%28v=vs.110%29.aspx?cs-save-lang=1&cs-lang=vb#code-snippet-1 is about the SetValue but you wrote "access" which could mean something else.

What function failed and what exception was thrown?