msi: Don't fail if the directory already exists in MsiCreateAndVerifyInstallerDirectory.
[wine] / dlls / npmshtml /
drwxr-xr-x   ..
-rw-r--r-- 97 Makefile.in
-rw-r--r-- 1193 main.c
-rw-r--r-- 111 npmshtml.spec
-rw-r--r-- 1034 rsrc.rc