Registrations are now open. Join us today!
There is still a lot of work to do on the wiki yet! More information about editing can be found here.
Already have an account?

Microsoft KB Archive/104042

From BetaArchive Wiki
Knowledge Base

PRB: Unable to Write to the Windows NT Registry

Article ID: 104042

Article Last Modified on 12/1/2003


  • Microsoft Visual C++ 1.0 Professional Edition
  • Microsoft Visual C++ 2.0 Professional Edition
  • Microsoft Visual C++ 2.1
  • Microsoft Visual C++ 4.0 Standard Edition
  • Microsoft Visual C++ 4.1 Subscription

This article was previously published under Q104042


Windows NT sets up each Windows NT user with a different environment. When you install Visual C++ 32-bit Edition, Visual C++ installs for that particular user. If the user changes his or her group membership (privileges), then the Registry Key will not work accordingly with Visual C++. The following two messages may appear if this happens when starting Visual Workbench:

  • Message 1:

    The options Registry Key 'Visual C++' is missing. A new Registry
       Key will be created using the default settings."
       Press OK to continue.
  • Message 2:

       Unable to write to the NT Registry. Option settings will not be
       Press OK to continue.

After these messages, Visual C++ starts running. However, when you exit you receive the second message again.


Each Windows NT user has a different user profile and privilege level. Each user may not have access to the same Registry Key information as the person who installed Visual C++. Changing the privilege level of the person who installed Visual C++ causes this problem.


Check with the Windows NT administrator for the machine to correctly perform the following steps to rebuild the Registry Key for that particular Visual C++ user.

  1. Log in as Administrator and give the user of Visual C++ administrative privileges to delete the Visual C++ entry, with the Registry Editor (REGEDT32.EXE) located in the \WINNT\SYSTEM32 directory. The Visual C++ entry is under the HKEY_CURRENT_USER, Software, Microsoft, Visual C++. Be sure not to delete any entries other than Visual C++.
  2. Remove the administrative privileges for the Visual C++ user.
  3. Log in as the user and start Visual C++ again; this time you will only receive the first message above and a new Registry entry will be created.

Keywords: kbsetup kbprb KB104042