diff --git a/sys_not_unix.go b/sys_not_unix.go
index 84038bd..d29b927 100644
--- a/sys_not_unix.go
+++ b/sys_not_unix.go
@@ -1,4 +1,4 @@
-//go:build !linux && !darwin
+//go:build !linux && !darwin && !windows
 
 package rcmgr
 
diff --git a/sys_windows.go b/sys_windows.go
new file mode 100644
index 0000000..7387eb8
--- /dev/null
+++ b/sys_windows.go
@@ -0,0 +1,11 @@
+//go:build windows
+
+package rcmgr
+
+import (
+	"math"
+)
+
+func getNumFDs() int {
+	return math.MaxInt
+}