diff --git a/backup_test.go b/backup_test.go
index cc5a0c5..0522a12 100644
--- a/backup_test.go
+++ b/backup_test.go
@@ -1,3 +1,5 @@
+// +build windows
+
 package winio
 
 import (
diff --git a/backuptar/tar_test.go b/backuptar/tar_test.go
index ee10960..8be0bf3 100644
--- a/backuptar/tar_test.go
+++ b/backuptar/tar_test.go
@@ -1,3 +1,5 @@
+// +build windows
+
 package backuptar
 
 import (
diff --git a/ea_test.go b/ea_test.go
index 27db14f..1d2abd7 100644
--- a/ea_test.go
+++ b/ea_test.go
@@ -1,3 +1,5 @@
+// +build windows
+
 package winio
 
 import (
diff --git a/hvsock.go b/hvsock.go
index dbfe790..b632f8f 100644
--- a/hvsock.go
+++ b/hvsock.go
@@ -1,3 +1,5 @@
+// +build windows
+
 package winio
 
 import (
diff --git a/pipe_test.go b/pipe_test.go
index bd26ea7..a4ddea5 100644
--- a/pipe_test.go
+++ b/pipe_test.go
@@ -1,3 +1,5 @@
+// +build windows
+
 package winio
 
 import (
diff --git a/pkg/etw/eventdata.go b/pkg/etw/eventdata.go
index a524d89..abf1680 100644
--- a/pkg/etw/eventdata.go
+++ b/pkg/etw/eventdata.go
@@ -1,3 +1,5 @@
+// +build windows
+
 package etw
 
 import (
diff --git a/pkg/etw/eventopt.go b/pkg/etw/eventopt.go
index fb6ac7d..eaace68 100644
--- a/pkg/etw/eventopt.go
+++ b/pkg/etw/eventopt.go
@@ -1,3 +1,5 @@
+// +build windows
+
 package etw
 
 import (
diff --git a/pkg/etw/fieldopt.go b/pkg/etw/fieldopt.go
index d544a29..b5ea80a 100644
--- a/pkg/etw/fieldopt.go
+++ b/pkg/etw/fieldopt.go
@@ -1,3 +1,5 @@
+// +build windows
+
 package etw
 
 import (
diff --git a/pkg/etw/newprovider.go b/pkg/etw/newprovider.go
index eb99cea..237fc7a 100644
--- a/pkg/etw/newprovider.go
+++ b/pkg/etw/newprovider.go
@@ -1,3 +1,4 @@
+// +build windows
 // +build amd64 arm64 386
 
 package etw
diff --git a/pkg/etw/newprovider_unsupported.go b/pkg/etw/newprovider_unsupported.go
index 808455c..d6b824a 100644
--- a/pkg/etw/newprovider_unsupported.go
+++ b/pkg/etw/newprovider_unsupported.go
@@ -1,3 +1,4 @@
+// +build windows
 // +build arm
 
 package etw
diff --git a/pkg/etw/provider.go b/pkg/etw/provider.go
index 5782657..51baeee 100644
--- a/pkg/etw/provider.go
+++ b/pkg/etw/provider.go
@@ -1,3 +1,5 @@
+// +build windows
+
 package etw
 
 import (
diff --git a/pkg/etw/provider_test.go b/pkg/etw/provider_test.go
index 69d9910..6b7c5ef 100644
--- a/pkg/etw/provider_test.go
+++ b/pkg/etw/provider_test.go
@@ -1,3 +1,5 @@
+// +build windows
+
 package etw
 
 import (
diff --git a/pkg/etw/providerglobal.go b/pkg/etw/providerglobal.go
index 6c7331d..ce3d305 100644
--- a/pkg/etw/providerglobal.go
+++ b/pkg/etw/providerglobal.go
@@ -1,3 +1,5 @@
+// +build windows
+
 package etw
 
 import (
diff --git a/pkg/etw/sample/noop.go b/pkg/etw/sample/noop.go
new file mode 100644
index 0000000..bf98ceb
--- /dev/null
+++ b/pkg/etw/sample/noop.go
@@ -0,0 +1,5 @@
+// +build !windows
+
+package main
+
+func main() {}
diff --git a/pkg/etw/sample/sample.go b/pkg/etw/sample/sample.go
index 40c3d7c..0424fb8 100644
--- a/pkg/etw/sample/sample.go
+++ b/pkg/etw/sample/sample.go
@@ -1,3 +1,5 @@
+// +build windows
+
 // Shows a sample usage of the ETW logging package.
 package main
 
diff --git a/pkg/etw/wrapper_32.go b/pkg/etw/wrapper_32.go
index d0a7dac..5766d4d 100644
--- a/pkg/etw/wrapper_32.go
+++ b/pkg/etw/wrapper_32.go
@@ -1,3 +1,4 @@
+// +build windows
 // +build 386 arm
 
 package etw
diff --git a/pkg/etw/wrapper_64.go b/pkg/etw/wrapper_64.go
index ef8b599..c78d8d2 100644
--- a/pkg/etw/wrapper_64.go
+++ b/pkg/etw/wrapper_64.go
@@ -1,3 +1,4 @@
+// +build windows
 // +build amd64 arm64
 
 package etw
diff --git a/pkg/etwlogrus/hook.go b/pkg/etwlogrus/hook.go
index 38228c3..4332af5 100644
--- a/pkg/etwlogrus/hook.go
+++ b/pkg/etwlogrus/hook.go
@@ -1,3 +1,5 @@
+// +build windows
+
 package etwlogrus
 
 import (
diff --git a/pkg/etwlogrus/hook_test.go b/pkg/etwlogrus/hook_test.go
index 117402d..6f3e7ae 100644
--- a/pkg/etwlogrus/hook_test.go
+++ b/pkg/etwlogrus/hook_test.go
@@ -1,3 +1,5 @@
+// +build windows
+
 package etwlogrus
 
 import (
diff --git a/pkg/guid/guid.go b/pkg/guid/guid.go
index 5864065..f497c0e 100644
--- a/pkg/guid/guid.go
+++ b/pkg/guid/guid.go
@@ -1,3 +1,5 @@
+// +build windows
+
 // Package guid provides a GUID type. The backing structure for a GUID is
 // identical to that used by the golang.org/x/sys/windows GUID type.
 // There are two main binary encodings used for a GUID, the big-endian encoding,
diff --git a/pkg/guid/guid_test.go b/pkg/guid/guid_test.go
index d7e2124..84629ee 100644
--- a/pkg/guid/guid_test.go
+++ b/pkg/guid/guid_test.go
@@ -1,3 +1,5 @@
+// +build windows
+
 package guid
 
 import (
diff --git a/pkg/process/process.go b/pkg/process/process.go
index ab828f6..85c70fe 100644
--- a/pkg/process/process.go
+++ b/pkg/process/process.go
@@ -1,3 +1,5 @@
+// +build windows
+
 package process
 
 import (
diff --git a/pkg/process/syscall.go b/pkg/process/syscall.go
index 6732e5e..598d0cc 100644
--- a/pkg/process/syscall.go
+++ b/pkg/process/syscall.go
@@ -1,3 +1,5 @@
+// +build windows
+
 package process
 
 import (
diff --git a/pkg/security/grantvmgroupaccess.go b/pkg/security/grantvmgroupaccess.go
index 2df31b6..fca2415 100644
--- a/pkg/security/grantvmgroupaccess.go
+++ b/pkg/security/grantvmgroupaccess.go
@@ -1,3 +1,5 @@
+// +build windows
+
 package security
 
 import (
diff --git a/pkg/security/grantvmgroupaccess_test.go b/pkg/security/grantvmgroupaccess_test.go
index 19da4b3..9d87eef 100644
--- a/pkg/security/grantvmgroupaccess_test.go
+++ b/pkg/security/grantvmgroupaccess_test.go
@@ -1,3 +1,5 @@
+//+build windows
+
 package security
 
 import (
diff --git a/privileges_test.go b/privileges_test.go
index 5e94c48..36fe72f 100644
--- a/privileges_test.go
+++ b/privileges_test.go
@@ -1,3 +1,5 @@
+// +build windows
+
 package winio
 
 import "testing"
diff --git a/sd_test.go b/sd_test.go
index a33925c..4f3d981 100644
--- a/sd_test.go
+++ b/sd_test.go
@@ -1,3 +1,5 @@
+// +build windows
+
 package winio
 
 import "testing"
diff --git a/tools/etw-provider-gen/main.go b/tools/etw-provider-gen/main.go
index 1da4657..9e6df9d 100644
--- a/tools/etw-provider-gen/main.go
+++ b/tools/etw-provider-gen/main.go
@@ -1,3 +1,5 @@
+// +build windows
+
 package main
 
 import (
diff --git a/tools/etw-provider-gen/noop.go b/tools/etw-provider-gen/noop.go
new file mode 100644
index 0000000..bf98ceb
--- /dev/null
+++ b/tools/etw-provider-gen/noop.go
@@ -0,0 +1,5 @@
+// +build !windows
+
+package main
+
+func main() {}
diff --git a/vhd/zvhd.go b/vhd/zvhd.go
index 54c94db..d8b737a 100644
--- a/vhd/zvhd.go
+++ b/vhd/zvhd.go
@@ -1,3 +1,5 @@
+// +build windows
+
 // MACHINE GENERATED BY 'go generate' COMMAND; DO NOT EDIT
 
 package vhd
diff --git a/wim/decompress.go b/wim/decompress.go
index f4e67f8..12d5196 100644
--- a/wim/decompress.go
+++ b/wim/decompress.go
@@ -1,3 +1,5 @@
+// +build windows
+
 package wim
 
 import (
diff --git a/wim/validate/noop.go b/wim/validate/noop.go
new file mode 100644
index 0000000..bf98ceb
--- /dev/null
+++ b/wim/validate/noop.go
@@ -0,0 +1,5 @@
+// +build !windows
+
+package main
+
+func main() {}
diff --git a/wim/validate/validate.go b/wim/validate/validate.go
index ba03fc9..2536c00 100644
--- a/wim/validate/validate.go
+++ b/wim/validate/validate.go
@@ -1,3 +1,5 @@
+// +build windows
+
 package main
 
 import (
diff --git a/wim/wim.go b/wim/wim.go
index 1d02e92..e3ca2f1 100644
--- a/wim/wim.go
+++ b/wim/wim.go
@@ -1,3 +1,5 @@
+// +build windows
+
 // Package wim implements a WIM file parser.
 //
 // WIM files are used to distribute Windows file system and container images.