OpenFileDlg: Avoid creating an empty CPath object.
SubtitleDlDlg: Controls handles aren't initialized yet in the constructor.
STS: Code simplification.
Auto-update: Show the message at first start before starting playing anything.
RealMediaGraph: Fix a typo.
AudioSwitcher: Fix the initialization of the normalization factor.
AudioSwitcher: Use the defines for the max and min values of a 24-bit integer.
BaseSplitterFileEx: Fix an incorrect check.
BaseSplitterFileEx: Simplify a check.
BufferFilter: Check for null pointers before actually using them.
ComPropertySheet: Remove a redundant check.
FGManagerBDA: Check for null pointer before actually using it.
IPinHook: Fix wrong sizeof.
PPageFileInfoClip: Use CComBSTR Length method when possible.