The bitness depends solely on the bitness of the DLL (tested manually). Fixes bugs 31741 and 37856. Signed-off-by: Zebediah Figura <z.figura12(a)gmail.com> --- dlls/msi/custom.c | 29 +++++++++++++++++++++++++++-- 1 file changed, 27 insertions(+), 2 deletions(-) diff --git a/dlls/msi/custom.c b/dlls/msi/custom.c index 72c3efd..4ec1a39 100644 --- a/dlls/msi/custom.c +++ b/dlls/msi/custom.c @@ -579,11 +579,19 @@ UINT __wine_msi_call_dll_function(const GUID *guid) static DWORD WINAPI DllThread( LPVOID arg ) { - WCHAR buffer[64] = {'m','s','i','e','x','e','c','.','e','x','e',' ','-','E','m','b','e','d','d','i','n','g',' ',0}; + static const WCHAR msiexec32W[] = {'C',':','/','w','i','n','d','o','w','s','/', + 's','y','s','w','o','w','6','4','/','m','s','i','e','x','e','c','.','e','x','e',0}; + static const WCHAR msiexecW[] = {'m','s','i','e','x','e','c','.','e','x','e',0}; + static const WCHAR embeddingW[] = {' ','-','E','m','b','e','d','d','i','n','g',' ',0}; + msi_custom_action_info *info; PROCESS_INFORMATION pi = {0}; STARTUPINFOW si = {0}; + WCHAR buffer[100]; RPC_STATUS status; GUID *guid = arg; + void *cookie; + BOOL wow64; + DWORD arch; DWORD rc; TRACE("custom action (%x) started\n", GetCurrentThreadId() ); @@ -605,8 +613,25 @@ static DWORD WINAPI DllThread( LPVOID arg ) return status; } + info = find_action_by_guid(guid); + GetBinaryTypeW(info->source, &arch); + + if (sizeof(void *) == 8 && arch == SCS_32BIT_BINARY) + strcpyW(buffer, msiexec32W); + else + strcpyW(buffer, msiexecW); + strcatW(buffer, embeddingW); StringFromGUID2(guid, buffer + strlenW(buffer), 39); - CreateProcessW(NULL, buffer, NULL, NULL, FALSE, 0, NULL, NULL, &si, &pi); + + if (IsWow64Process(GetCurrentProcess(), &wow64) && wow64 && arch == SCS_64BIT_BINARY) + { + Wow64DisableWow64FsRedirection(&cookie); + CreateProcessW(NULL, buffer, NULL, NULL, FALSE, 0, NULL, NULL, &si, &pi); + Wow64RevertWow64FsRedirection(cookie); + } + else + CreateProcessW(NULL, buffer, NULL, NULL, FALSE, 0, NULL, NULL, &si, &pi); + WaitForSingleObject(pi.hProcess, INFINITE); GetExitCodeProcess(pi.hProcess, &rc); CloseHandle(pi.hProcess); -- 2.7.4