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diff --git a/bundles/org.simantics.workbench.search.impl/src/org/simantics/workbench/search/impl/SearchServiceFactory.java b/bundles/org.simantics.workbench.search.impl/src/org/simantics/workbench/search/impl/SearchServiceFactory.java
new file mode 100644
index 000000000..5ad172941
--- /dev/null
+++ b/bundles/org.simantics.workbench.search.impl/src/org/simantics/workbench/search/impl/SearchServiceFactory.java
@@ -0,0 +1,51 @@
+package org.simantics.workbench.search.impl;
+
+
+import org.eclipse.core.expressions.Expression;
+import org.eclipse.ui.IWorkbench;
+import org.eclipse.ui.IWorkbenchPartSite;
+import org.eclipse.ui.IWorkbenchWindow;
+import org.eclipse.ui.internal.expressions.ActivePartExpression;
+import org.eclipse.ui.internal.expressions.WorkbenchWindowExpression;
+import org.eclipse.ui.internal.services.IWorkbenchLocationService;
+import org.eclipse.ui.services.AbstractServiceFactory;
+import org.eclipse.ui.services.IServiceLocator;
+import org.simantics.workbench.search.ISearchService;
+
+@SuppressWarnings("restriction")
+public class SearchServiceFactory extends AbstractServiceFactory {
+
+	@SuppressWarnings("rawtypes")
+	@Override
+	public Object create(Class serviceInterface, IServiceLocator parentLocator,
+			IServiceLocator locator) {
+		if (!ISearchService.class.equals(serviceInterface))
+			return null;
+		IWorkbenchLocationService wls = (IWorkbenchLocationService) locator
+				.getService(IWorkbenchLocationService.class);
+		final IWorkbench wb = wls.getWorkbench();
+		if (wb == null) {
+			return null;
+		}
+
+		@SuppressWarnings("unchecked")
+		Object parent = parentLocator.getService(serviceInterface);
+		if (parent == null) {
+			return new SearchServiceImpl();
+		}
+		final IWorkbenchWindow window = wls.getWorkbenchWindow();
+		final IWorkbenchPartSite site = wls.getPartSite();
+		if (site == null) {
+			Expression exp = new WorkbenchWindowExpression(window);
+			return new SlaveSearchService((ISearchService)parent, exp);
+		}
+		if (parent instanceof SlaveSearchService) {
+			Expression parentExp = ((SlaveSearchService) parent).getDefaultExpression();
+			return new NestableSearchService((ISearchService)parent, parentExp);
+		}
+
+		Expression exp = new ActivePartExpression(site.getPart());
+		return new SlaveSearchService((ISearchService)parent, exp);
+	}
+
+}