Re: Unable to remove hooked DLL

Hi,

I have a dll which can install a global hook. There are two functions:
InstallHook() and UninstallHook(). With InstallHook() the caller can install
the hook. With UninstallHook() the caller can unhook the DLL.

I want to delete the dll after calling UninstallHook(). But sometimes the
dll can't be deleted. I want to know why I can't delete the dll after unhook
the dll.

The code like this:

static HHOOK hhook = NULL;

BOOL InstallHook()
{
hhook = ::SetWindowsHookEx( WH_SHELL , HookProc hDllModule, 0);
if ( hhook == NULL ){
 return FALSE;
}
return TRUE;
}

BOOL UninstallHook()
{
::UnhookWindowsHookEx( hhook );
hhook = NULL;
return TRUE;
}

Is there any problem in my code? Thanks in advanced.