[This is preliminary documentation and subject to change.]
The MsiCloseHandle function closes an open installation handle.
UINT MsiCloseHandle(
  MSIHANDLE hAny    // Installer handle
);
 MsiCloseHandle must be called from the same thread that requested the creation of the handle.
  Windows NT: Requires version 4.0 or later. Available as a redistributable for Windows NT 4.0.
  Windows: Requires Windows 95 or later. Available as a redistributable for Windows 95.
  Windows CE: Unsupported.
  Header: Declared in msi.h.
  Import Library: Use msi.lib.