[Win32ss]
- Prevent a potential kernel exception.

git-svn-id: svn://svn.reactos.org/reactos/trunk@60682 97493ccd-5924-5043-b1f5-66cb403b36ce
[Win32ss]
- Prevent a potential kernel exception.

git-svn-id: svn://svn.reactos.org/reactos/trunk@60683 97493ccd-5924-5043-b1f5-66cb403b36ce
- Properly remove window properties when destroying the window.

git-svn-id: svn://svn.reactos.org/reactos/trunk@60684 97493ccd-5924-5043-b1f5-66cb403b36ce
[shell32]
- Add an initial stub for CMenuBand that creates a menu bar and fills it with contents. However its still not functional

git-svn-id: svn://svn.reactos.org/reactos/trunk@60690 97493ccd-5924-5043-b1f5-66cb403b36ce
[SAMSRV]
Add query and set code of user private data and security descriptor attributes.

git-svn-id: svn://svn.reactos.org/reactos/trunk@60691 97493ccd-5924-5043-b1f5-66cb403b36ce