Running C++ Builder 6.0 on new win 10

As my main source of income is still written in C++ Builder 6.0, I am stuck with it. Today I updated my system to Windows 10 (build 1709) and Builder refuses to run.

I was left with registry form and registration was not the solution. I just couldn’t register it.

To make the story short. Here is the solution:

  1. Open registry
  2. Delete LM value from HKCU\Software\Borland\C++Builder\6.0
  3. Export the whole key HKEY_CURRENT_USER\Software\Borland
  4. In exported file change \Software\ ==> \Software\Wow6432Node\
  5. Import changed registry file
  6. Reregister Borland C++ Builder

At it is working again! 🙂

PS: The solution is to move (copy) the whole Borland subtree to HKCU\Software\Wow6432Node\ subtree, because it is an old x86 app.

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