msi: Only copy the resulting string if the RegistryValue call succeeded.
[wine] / dlls / advpack /
drwxr-xr-x   ..
-rw-r--r-- 338 Makefile.in
-rw-r--r-- 31257 advpack.c
-rw-r--r-- 4420 advpack.spec
-rw-r--r-- 1140 advpack_private.h
-rw-r--r-- 31857 files.c
-rw-r--r-- 28975 install.c
-rw-r--r-- 13250 reg.c
drwxr-xr-x - tests