Fixes some memory leaks.

Replaced malloc by HeapAlloc.

implementation details of seekdir/telldir.

HKEY_CURRENT_USER/Environment key instead of the [wine] section for
Path, Temp and System variables.

of message tests for MDI child activation.

y-x instructions, no matter how wide each instruction was).

instance from wineprefixcreate in a text mode console.

storage.

GetServiceDisplayName.

CTX_SYSEXTY context fields, to match Windows behaviour.

African Time.

registry.

For a dual interface the dispinterface's cfuncs should include the
inherited functions, cbSizeVft should just be the size of IDispatch's
vtbl and we should strip TYPEFLAG_FOLEAUTOMATION.