diff --git a/initializr-generator-spring/src/test/java/io/spring/initializr/generator/spring/test/ProjectAssert.java b/initializr-generator-spring/src/test/java/io/spring/initializr/generator/spring/test/ProjectAssert.java
index 1fc7b977..a3db6bf1 100644
--- a/initializr-generator-spring/src/test/java/io/spring/initializr/generator/spring/test/ProjectAssert.java
+++ b/initializr-generator-spring/src/test/java/io/spring/initializr/generator/spring/test/ProjectAssert.java
@@ -16,6 +16,7 @@
 
 package io.spring.initializr.generator.spring.test;
 
+import java.io.File;
 import java.nio.file.Files;
 import java.nio.file.Path;
 import java.util.Properties;
@@ -192,8 +193,14 @@ public class ProjectAssert {
 	}
 
 	public ProjectAssert hasExecutableFile(String... localPaths) {
+		if (runningOnWindows()) {
+			for (String localPath : localPaths) {
+				assertFile(localPath, true);
+			}
+			return this;
+		}
 		for (String localPath : localPaths) {
-			assertFile(localPath, true);
+			assertExecutable(localPath, true);
 		}
 		return this;
 	}
@@ -210,6 +217,19 @@ public class ProjectAssert {
 		return this;
 	}
 
+	public ProjectAssert assertExecutable(String localPath, boolean exist) {
+		Path candidate = this.projectStructure.resolve(localPath);
+		assertThat(Files.exists(candidate)).describedAs("Invalid presence (%s) exist for %s", exist, localPath)
+				.isEqualTo(exist);
+		assertThat(Files.isExecutable(candidate)).describedAs("File (%s) is not an executable", localPath)
+				.isEqualTo(exist);
+		return this;
+	}
+
+	private boolean runningOnWindows() {
+		return File.separatorChar == '\\';
+	}
+
 	private Properties properties(String localPath) {
 		Path file = this.projectStructure.resolve(localPath);
 		try {
diff --git a/initializr-web/src/test/java/io/spring/initializr/web/AbstractInitializrIntegrationTests.java b/initializr-web/src/test/java/io/spring/initializr/web/AbstractInitializrIntegrationTests.java
index 5e509781..855e2d84 100755
--- a/initializr-web/src/test/java/io/spring/initializr/web/AbstractInitializrIntegrationTests.java
+++ b/initializr-web/src/test/java/io/spring/initializr/web/AbstractInitializrIntegrationTests.java
@@ -16,6 +16,7 @@
 
 package io.spring.initializr.web;
 
+import java.io.File;
 import java.io.IOException;
 import java.io.InputStream;
 import java.nio.charset.Charset;
@@ -32,6 +33,7 @@ import io.spring.initializr.web.AbstractInitializrIntegrationTests.Config;
 import io.spring.initializr.web.mapper.InitializrMetadataVersion;
 import io.spring.initializr.web.support.InitializrMetadataUpdateStrategy;
 import org.apache.tools.ant.Project;
+import org.apache.tools.ant.taskdefs.ExecTask;
 import org.apache.tools.ant.taskdefs.Expand;
 import org.apache.tools.ant.taskdefs.Untar;
 import org.json.JSONException;
@@ -211,22 +213,58 @@ public abstract class AbstractInitializrIntegrationTests {
 	}
 
 	private void untar(Path archiveFile, Path project) {
-		Untar expand = new Untar();
-		expand.setProject(new Project());
-		expand.setDest(project.toFile());
-		expand.setSrc(archiveFile.toFile());
-		Untar.UntarCompressionMethod method = new Untar.UntarCompressionMethod();
-		method.setValue("gzip");
-		expand.setCompression(method);
-		expand.execute();
+		if (!runningOnWindows()) {
+			createProjectDir(project);
+			ExecTask execTask = new ExecTask();
+			execTask.setProject(new Project());
+			execTask.setExecutable("tar");
+			execTask.createArg().setValue("-C");
+			execTask.createArg().setValue(project.toFile().getAbsolutePath());
+			execTask.createArg().setValue("-xf");
+			execTask.createArg().setValue(archiveFile.toFile().getAbsolutePath());
+			execTask.execute();
+		}
+		else {
+			Untar expand = new Untar();
+			expand.setProject(new Project());
+			expand.setDest(project.toFile());
+			expand.setSrc(archiveFile.toFile());
+			Untar.UntarCompressionMethod method = new Untar.UntarCompressionMethod();
+			method.setValue("gzip");
+			expand.setCompression(method);
+			expand.execute();
+		}
+	}
+
+	private void createProjectDir(Path project) {
+		ExecTask execTask = new ExecTask();
+		execTask.setProject(new Project());
+		execTask.setExecutable("mkdir");
+		execTask.createArg().setValue(project.toFile().getAbsolutePath());
+		execTask.execute();
 	}
 
 	private void unzip(Path archiveFile, Path project) {
-		Expand expand = new Expand();
-		expand.setProject(new Project());
-		expand.setDest(project.toFile());
-		expand.setSrc(archiveFile.toFile());
-		expand.execute();
+		if (!runningOnWindows()) {
+			ExecTask execTask = new ExecTask();
+			execTask.setProject(new Project());
+			execTask.setExecutable("unzip");
+			execTask.createArg().setValue(archiveFile.toFile().getAbsolutePath());
+			execTask.createArg().setValue("-d");
+			execTask.createArg().setValue(project.toFile().getAbsolutePath());
+			execTask.execute();
+		}
+		else {
+			Expand expand = new Expand();
+			expand.setProject(new Project());
+			expand.setDest(project.toFile());
+			expand.setSrc(archiveFile.toFile());
+			expand.execute();
+		}
+	}
+
+	private boolean runningOnWindows() {
+		return File.separatorChar == '\\';
 	}
 
 	protected Path writeArchive(byte[] body) throws IOException {