[PATCH 2/3] server: Prevent unloading a registry hive while the key is in use.

[Akihiro Sagawa]

Otherwise, RegUnLoadKey(HKEY_USERS, "S-1-5-21-0-0-0-1000") erases all
HKCU registry. The call is actually done by a certain installer.

Signed-off-by: Akihiro Sagawa <sagawa.aki(a)gmail.com>
---
 server/registry.c | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)