[Backport 7.78.x] [CXP-3401][agent][windows] Fix remote process collector missing from Windows build

comp/core/workloadmeta/collectors/catalog-core/options_nosbom.go

@@ -23,6 +23,7 @@ import (
 	"github.com/DataDog/datadog-agent/comp/core/workloadmeta/collectors/internal/nvml"
 	"github.com/DataDog/datadog-agent/comp/core/workloadmeta/collectors/internal/podman"
 	"github.com/DataDog/datadog-agent/comp/core/workloadmeta/collectors/internal/process"
+	remoteprocesscollector "github.com/DataDog/datadog-agent/comp/core/workloadmeta/collectors/internal/remote/processcollector"
 	remotesbomcollector "github.com/DataDog/datadog-agent/comp/core/workloadmeta/collectors/internal/remote/sbomcollector"
 )
 
@@ -37,6 +38,7 @@ func getCollectorOptions() []fx.Option {
 		kubelet.GetFxOptions(),
 		kubemetadata.GetFxOptions(),
 		podman.GetFxOptions(),
+		remoteprocesscollector.GetFxOptions(),
 		remotesbomcollector.GetFxOptions(),
 		nvml.GetFxOptions(),
 		process.GetFxOptions(),

test/new-e2e/tests/process/config/language_detection.yaml

@@ -0,0 +1,7 @@
+process_config:
+  process_collection:
+    enabled: true
+  intervals:
+    process: 1
+language_detection:
+  enabled: true

test/new-e2e/tests/process/testing.go

@@ -42,6 +42,9 @@ var coreAgentRefreshStr string
 //go:embed config/process_agent_refresh_win.yaml
 var processAgentWinRefreshStr string
 
+//go:embed config/language_detection.yaml
+var languageDetectionConfigStr string
+
 // AgentStatus is a subset of the agent's status response for asserting the process-agent runtime
 type AgentStatus struct {
 	ProcessAgentStatus struct {

test/new-e2e/tests/process/windows_test.go

@@ -308,6 +308,65 @@ func (s *windowsTestSuite) TestManualUnprotectedProcessCheckWithIO() {
 	}, 1*time.Minute, 5*time.Second)
 }
 
+// TODO(CXP-3410): Unskip once gRPC stream cycling after MSI reinstall is fixed.
+// See https://datadoghq.atlassian.net/browse/CXP-3410
+func (s *windowsTestSuite) TestLanguageDetectionWindows() {
+	s.T().Skip("Skipped: gRPC stream cycling after MSI reinstall prevents language data delivery (CXP-3410)")
+	t := s.T()
+
+	// Enable language detection on the agent
+	s.UpdateEnv(awshost.Provisioner(
+		awshost.WithRunOptions(
+			ec2.WithEC2InstanceOptions(ec2.WithOS(os.WindowsServerDefault)),
+			ec2.WithAgentOptions(agentparams.WithAgentConfig(languageDetectionConfigStr)),
+		),
+	))
+
+	// Start Python in a persistent SSH session so it survives across commands
+	s.Env().RemoteHost.MustExecute(`Set-Content -Path C:\sleep.py -Value "import time; time.sleep(600)"`)
+	pythonPath := `"C:\Program Files\Datadog\Datadog Agent\embedded3\python.exe" C:\sleep.py`
+	session, stdin, _, err := s.Env().RemoteHost.Start(pythonPath)
+	require.NoError(t, err, "Failed to start python")
+	t.Cleanup(func() {
+		_ = session.Close()
+		_ = stdin.Close()
+	})
+
+	// Check that any process entity has Language.Name == "python" in the core agent's workload-list.
+	type workloadProcess struct {
+		Kind     string `json:"Kind"`
+		ID       string `json:"ID"`
+		Language *struct {
+			Name string `json:"Name"`
+		} `json:"Language"`
+	}
+	type workloadResponse struct {
+		Entities map[string][]workloadProcess `json:"Entities"`
+	}
+
+	var lastOutput string
+	assert.EventuallyWithT(t, func(c *assert.CollectT) {
+		out, err := s.Env().RemoteHost.Execute(`& "C:\Program Files\Datadog\Datadog Agent\bin\agent.exe" workload-list --json`)
+		if !assert.NoError(c, err, "workload-list command failed") {
+			return
+		}
+		lastOutput = out
+		var resp workloadResponse
+		if !assert.NoError(c, json.Unmarshal([]byte(lastOutput), &resp), "failed to parse workload-list JSON") {
+			return
+		}
+		for _, p := range resp.Entities["process"] {
+			if p.Language != nil && p.Language.Name == "python" {
+				return
+			}
+		}
+		assert.Fail(c, "no process with language=python found in workload-list")
+	}, 2*time.Minute, 5*time.Second)
+	if t.Failed() {
+		t.Logf("Last workload-list --json output:\n%s", lastOutput)
+	}
+}
+
 // Runs Diskspd in another ssh session
 // https://github.com/Microsoft/diskspd/wiki/Command-line-and-parameters
 // diskspd is an unprotected process, so we can capture the command line