Index: dll/win32/shell32/shlexec.cpp
===================================================================
--- dll/win32/shell32/shlexec.cpp	(revision 73093)
+++ dll/win32/shell32/shlexec.cpp	(working copy)
@@ -575,6 +575,11 @@
     if (env) *env = NULL;
     wcscpy(buffer, L"Software\\Microsoft\\Windows\\CurrentVersion\\App Paths\\");
     wcscat(buffer, szName);
+    // Add ".exe" extension before search if missing. Buffer is always greater than 4, length check is ignored
+    if(!wcscmp(buffer + wcslen(buffer) - 4, wszExe))
+    {
+        wcscat(buffer, wszExe);
+    }
     res = RegOpenKeyExW(HKEY_LOCAL_MACHINE, buffer, 0, KEY_READ, &hkApp);
     if (res) goto end;