mi: replace all WMI calls with MI calls (#1714)

internal/testutils/handle.go

@@ -0,0 +1,28 @@
+package testutils
+
+import (
+	"unsafe"
+
+	"golang.org/x/sys/windows"
+)
+
+var (
+	modkernel32 = windows.NewLazySystemDLL("kernel32.dll")
+
+	procGetProcessHandleCount = modkernel32.NewProc("GetProcessHandleCount")
+)
+
+func GetProcessHandleCount(handle windows.Handle) (uint32, error) {
+	var count uint32
+
+	r1, _, err := procGetProcessHandleCount.Call(
+		uintptr(handle),
+		uintptr(unsafe.Pointer(&count)),
+	)
+
+	if r1 != 1 {
+		return 0, err
+	}
+
+	return count, nil
+}