Deleting Outdated Registry Trees for Fortran or Visual C++

SUMMARY

If you have installed more than one release of a Microsoft software development product and are noticing strange build errors that seem, like undefined identifiers, it is possible that you have an outdated or incorrect Visual C++ or FORTRAN PowerStation registry. This situation can be corrected by deleting the appropriate registry key. Exit the Visual WorkBench and follow the steps below.

WARNING NOTE: Please follow the instructions closely, because the Windows NT installation may be corrupted if you happen to incorrectly delete the wrong key.

1. Select the Run... option from the Program Manager's File menu.
2. Type regedt32 in the Command Line field and press [Enter].
3. Select "HKEY_CURRENT_USER" under the Window menu
4. Open the "HKEY_CURRENT_USER" folder
5. Open the "Software" folder
6. Open the "Microsoft" folder
7. Select the "Development" folder (for Visual C++ version 4.0) or the "Visual C++ <version>" folder (<version> may be blank or be a version number such as "2.0") or the "FORTRAN PowerStation" folder.
8. Press the [Del] key
9. Answer [Yes] to the confirmation Dialog
10. Close the Registry Editor (regedt32).

The Visual WorkBench will inform you that a new registry key will be created the next time it is run.