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diff --git a/bundles/org.simantics.db.procore.server.environment/src/org/simantics/db/procore/server/environment/windows/ProductState.java b/bundles/org.simantics.db.procore.server.environment/src/org/simantics/db/procore/server/environment/windows/ProductState.java
new file mode 100644
index 000000000..ffe676725
--- /dev/null
+++ b/bundles/org.simantics.db.procore.server.environment/src/org/simantics/db/procore/server/environment/windows/ProductState.java
@@ -0,0 +1,74 @@
+/*******************************************************************************
+ * Copyright (c) 2010 Association for Decentralized Information Management
+ * in Industry THTH ry.
+ * All rights reserved. This program and the accompanying materials
+ * are made available under the terms of the Eclipse Public License v1.0
+ * which accompanies this distribution, and is available at
+ * http://www.eclipse.org/legal/epl-v10.html
+ *
+ * Contributors:
+ *     VTT Technical Research Centre of Finland - initial API and implementation
+ *******************************************************************************/
+package org.simantics.db.procore.server.environment.windows;
+
+/**
+ * The possible return values of Win32 API call MsiQueryProductState enumerated.
+ * 
+ * @author Tuukka Lehtonen
+ */
+public enum ProductState {
+
+    /**
+     * An invalid parameter was passed to the function.
+     */
+    INVALIDARG(-2),
+
+    /**
+     * The product is not advertised or installed.
+     */
+    UNKNOWN(-1),
+
+    /**
+     * Indicates invocation of {@link Msi#MsiQueryProductState(String)} failed.
+     */
+    FAILED(0),
+
+    /**
+     * The product is advertised but not installed.
+     */
+    ADVERTISED(1),
+
+    /**
+     * The product is installed for a different user.
+     */
+    ABSENT(2),
+
+    /**
+     * The product is installed for a different user.
+     */
+    DEFAULT(5);
+
+    int code;
+
+    ProductState(int code) {
+        this.code = code;
+    }
+
+    public static ProductState of(int code) {
+        switch (code) {
+            case -2: return INVALIDARG;
+            case -1: return UNKNOWN;
+            case 0: return FAILED;
+            case 1: return ADVERTISED;
+            case 2: return ABSENT;
+            case 5: return DEFAULT;
+            default: throw new IllegalArgumentException("unrecognized product install state return code: " + code);
+        }
+    }
+
+    @Override
+    public String toString() {
+        return name() + "(" + code + ")";
+    }
+
+}