[reactos] 136/360: [WINESYNC] msi: Don't assume that WoW64 redirection is enabled in custom_start_server().

[winesync]

https://git.reactos.org/?p=reactos.git;a=commitdiff;h=49439bc1b41fe2e16f2eb…

commit 49439bc1b41fe2e16f2eb9e04f5e195d85f1f9a2
Author:     winesync <ros-dev(a)reactos.org>
AuthorDate: Sat Mar 12 23:54:33 2022 +0100
Commit:     Mark Jansen <mark.jansen(a)reactos.org>
CommitDate: Sun Mar 20 19:28:00 2022 +0100

    [WINESYNC] msi: Don't assume that WoW64 redirection is enabled in
custom_start_server().
    
    As of 3a884c2ef the server is started on the main thread, so this is no
    longer a valid assumption. In particular, we disable WoW64 redirection while
    running standard actions, including the top-level INSTALL action.
    
    Wine-Bug: https://bugs.winehq.org/show_bug.cgi?id=45663
    Signed-off-by: Zebediah Figura <z.figura12(a)gmail.com>
    Signed-off-by: Hans Leidekker <hans(a)codeweavers.com>
    Signed-off-by: Alexandre Julliard <julliard(a)winehq.org>
    
    wine commit id 51ad009bacd297c0607bc6de4d5dae18afe6ea98 by Zebediah Figura
<z.figura12(a)gmail.com>
---
 dll/win32/msi/custom.c | 7 +++++--
 1 file changed, 5 insertions(+), 2 deletions(-)

diff --git a/dll/win32/msi/custom.c b/dll/win32/msi/custom.c
index bdc9b39cd5c..0107cd941ed 100644
--- a/dll/win32/msi/custom.c
+++ b/dll/win32/msi/custom.c
@@ -616,14 +616,17 @@ static DWORD custom_start_server(MSIPACKAGE *package, DWORD arch)
     if (pipe == INVALID_HANDLE_VALUE)
         ERR("Failed to create custom action client pipe: %u\n",
GetLastError());
 
-    if (sizeof(void *) == 8 && arch == SCS_32BIT_BINARY)
+    if (!IsWow64Process(GetCurrentProcess(), &wow64))
+        wow64 = FALSE;
+
+    if ((sizeof(void *) == 8 || wow64) && arch == SCS_32BIT_BINARY)
         GetSystemWow64DirectoryW(path, MAX_PATH - sizeof(msiexecW)/sizeof(WCHAR));
     else
         GetSystemDirectoryW(path, MAX_PATH - sizeof(msiexecW)/sizeof(WCHAR));
     strcatW(path, msiexecW);
     sprintfW(cmdline, argsW, path, GetCurrentProcessId());
 
-    if (IsWow64Process(GetCurrentProcess(), &wow64) && wow64 && arch
== SCS_64BIT_BINARY)
+    if (wow64 && arch == SCS_64BIT_BINARY)
     {
         Wow64DisableWow64FsRedirection(&cookie);
         CreateProcessW(path, cmdline, NULL, NULL, FALSE, 0, NULL, NULL, &si,
&pi);