All: Optimized `IsWindows11` routine

ExplorerPatcher/dllmain.c

@@ -40,6 +40,10 @@ IEPWeather* epw = NULL;
 SRWLOCK lock_epw = { .Ptr = SRWLOCK_INIT };
 #endif
 
+#ifndef _WIN64
+RTL_OSVERSIONINFOW global_rovi;
+#endif
+
 #define WINX_ADJUST_X 5
 #define WINX_ADJUST_Y 5
 

ExplorerPatcher/utility.c

@@ -2,6 +2,8 @@
 #include <Wininet.h>
 #pragma comment(lib, "Wininet.lib")
 
+RTL_OSVERSIONINFOW global_rovi;
+
 #pragma region "Weird stuff"
 INT64 STDMETHODCALLTYPE nimpl4_1(INT64 a1, DWORD* a2)
 {

ExplorerPatcher/utility.h

@@ -571,10 +571,11 @@ BOOL PleaseWait_UpdateTimeout(int timeout);
 VOID CALLBACK PleaseWait_TimerProc(HWND hWnd, UINT uMsg, UINT idEvent, DWORD dwTime);
 LRESULT CALLBACK PleaseWait_HookProc(int code, WPARAM wParam, LPARAM lParam);
 
+extern RTL_OSVERSIONINFOW global_rovi;
 inline BOOL IsWindows11()
 {
-    RTL_OSVERSIONINFOW rovi;
-    if (VnGetOSVersion(&rovi) && rovi.dwBuildNumber >= 21996)
+    if (!global_rovi.dwMajorVersion) VnGetOSVersion(&global_rovi);
+    if (global_rovi.dwBuildNumber >= 21996)
     {
         return TRUE;
     }