Check in Component toplevel directory using scm.exe

Situation:

* Sandbox is in C:\Sandbox
* Component Comp1 at Repository was loaded into sandbox using: scm load -r Repository Workspace Comp1
* Directory structure in C:Sandbox is:
  \TopLevel
  \TopLevel\Sublevel

My Problem is with the scm checkin command. I would like to execute: scm checkin -d Sandbox \TopLevel. scm returns with error message saying that TopLevel is not shared.

My Solution attempts so far:
1. scm share workspace component TopLevel. No effect.
2. scm checkin \TopLevel\*. Successfully check in of all Files and Directories. Not usable if file was deleted in Sandbox and Deletion has to be checked in.

If I execute: scm checkin -d Sandbox \TopLevel\SubLevel everything is fine. New files and deleted files under \TopLevel\SubLevel are checked in correctly. The problem resides with the TopLevel Directory of the component.

Is there any solution to this problem?

regards
Peter