diff --git a/main.go b/main.go
index 19b3422..167a723 100644
--- a/main.go
+++ b/main.go
@@ -112,7 +112,15 @@ func main() {
 
 	// if apiset dump option, load apisetschema.dll and dump all apisets
 	if options.ApisetDump {
-		path, err := util.SearchFile([]string{"C:\\Windows\\System32", "os/win10_32/windows/system32"}, "apisetschema.dll")
+		rootFolder := "os/win10_32/"
+		if options.Config != "" {
+			conf, err := util.ReadGenericConfig(options.Config)
+			if err != nil {
+				log.Fatal(err)
+			}
+			rootFolder = conf.Root
+		}
+		path, err := util.SearchFile([]string{"C:\\Windows\\System32", rootFolder + "windows/system32"}, "apisetschema.dll")
 		if err != nil {
 			log.Fatal(err)
 		}
@@ -128,7 +136,15 @@ func main() {
 
 	// if apiset lookup, load apisetschema.dll and look up the apiset name
 	if options.ApisetLookup != "" {
-		path, err := util.SearchFile([]string{"C:\\Windows\\System32", "os/win10_32/windows/system32"}, "apisetschema.dll")
+		rootFolder := "os/win10_32/"
+		if options.Config != "" {
+			conf, err := util.ReadGenericConfig(options.Config)
+			if err != nil {
+				log.Fatal(err)
+			}
+			rootFolder = conf.Root
+		}
+		path, err := util.SearchFile([]string{"C:\\Windows\\System32", rootFolder + "windows/system32"}, "apisetschema.dll")
 		if err != nil {
 			log.Fatal(err)
 		}
diff --git a/util/config.go b/util/config.go
new file mode 100644
index 0000000..b2e6b7a
--- /dev/null
+++ b/util/config.go
@@ -0,0 +1,16 @@
+package util
+
+import "gopkg.in/yaml.v2"
+import "io/ioutil"
+
+type GenericConfig struct {
+	Root string `yaml:"root"`
+}
+
+func ReadGenericConfig(config string) (conf GenericConfig, err error) {
+	var buf []byte
+	if buf, err = ioutil.ReadFile(config); err == nil {
+		err = yaml.Unmarshal(buf, &conf)
+	}
+	return
+}