The subject behavior is symptomatic of missing or damaged registry entries.

To workaround this behavior:

1. Open a CMD.exe prompt.

2. Type Regsvr32 %SystemRoot%\System32\netshell.dll and press Enter.

3. Press OK.

4. If the problem is resolved, exit this procedure.

5. Type Regsvr32 %SystemRoot%\System32\ole32.dll and press Enter.

6. Press OK.

7. Restart your computer.