[PATCH] Prevent a crash on NT4

[Paul Vriens]

---
 dlls/msi/tests/source.c |    2 ++
 1 files changed, 2 insertions(+), 0 deletions(-)

diff --git a/dlls/msi/tests/source.c b/dlls/msi/tests/source.c
index 30b5be0..9248b70 100644
--- a/dlls/msi/tests/source.c
+++ b/dlls/msi/tests/source.c
@@ -130,6 +130,8 @@ static int get_user_sid(LPSTR *usersid)
     PTOKEN_USER user;
     BOOL rc;
 
+    if (!pConvertSidToStringSidA)
+        return 0;
     rc=OpenProcessToken(GetCurrentProcess(), TOKEN_QUERY, &token);
     if (!rc && GetLastError() == ERROR_CALL_NOT_IMPLEMENTED)
         return 0;
-- 
1.5.5.1


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