[PATCH v2 1/2] combase: Use file system redirection path only for an opposite architecture in a WoW64 setup.

27 Jun 2022

Signed-off-by: Dmitry Timoshkov <dmitry(a)baikal.ru>
---
 dlls/combase/rpc.c | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/dlls/combase/rpc.c b/dlls/combase/rpc.c
index bed7518358c..3a171dbb324 100644
--- a/dlls/combase/rpc.c
+++ b/dlls/combase/rpc.c
@@ -527,7 +527,7 @@ static HRESULT create_surrogate_server(REFCLSID rclsid, HANDLE *process)
     HKEY key;
     int arch = (sizeof(void *) > sizeof(int)) ? 64 : 32;
     REGSAM opposite = (arch == 64) ? KEY_WOW64_32KEY : KEY_WOW64_64KEY;
-    BOOL is_wow64 = FALSE;
+    BOOL is_wow64 = FALSE, is_opposite = FALSE;
     HRESULT hr;
     WCHAR command[MAX_PATH + ARRAY_SIZE(processidW) + CHARS_IN_GUID];
     DWORD size;
@@ -548,6 +548,7 @@ static HRESULT create_surrogate_server(REFCLSID rclsid, HANDLE *process)
     {
         hr = open_appidkey_from_clsid(rclsid, opposite | KEY_READ, &key);
         if (FAILED(hr)) return hr;
+        is_opposite = TRUE;
     }
 
     size = (MAX_PATH + 1) * sizeof(WCHAR);
@@ -574,7 +575,7 @@ static HRESULT create_surrogate_server(REFCLSID rclsid, HANDLE *process)
 
     TRACE("Activating surrogate local server %s\n", debugstr_w(command));
 
-    if (is_wow64 && arch == 64)
+    if (is_opposite)
     {
         void *cookie;
         Wow64DisableWow64FsRedirection(&cookie);
-- 
2.36.1

    

Dmitry Timoshkov