[5/7] msi: Implement MsiGetMode(MSIRUNMODE_ROLLBACKENABLED).

[Hans Leidekker]

---
 dlls/msi/install.c |    4 ++++
 1 files changed, 4 insertions(+), 0 deletions(-)

diff --git a/dlls/msi/install.c b/dlls/msi/install.c
index e90c3b1..0e57d6b 100644
--- a/dlls/msi/install.c
+++ b/dlls/msi/install.c
@@ -762,6 +762,10 @@ BOOL WINAPI MsiGetMode(MSIHANDLE hInstall, MSIRUNMODE iRunMode)
         r = msi_get_property_int( package->db, szInstalled, 0 ) != 0;
         break;
 
+    case MSIRUNMODE_ROLLBACKENABLED:
+        r = msi_get_property_int( package->db, szRollbackDisabled, 0 ) == 0;
+        break;
+
     case MSIRUNMODE_REBOOTATEND:
         r = package->need_reboot;
         break;
-- 
1.7.4.1