Added an uninstaller for InstallShield, WISE etc.
diff --git a/include/regstr.h b/include/regstr.h
new file mode 100644
index 0000000..21f263b
--- /dev/null
+++ b/include/regstr.h
@@ -0,0 +1,22 @@
+/*
+ * Win32 registry string defines (see also winnt.h)
+ */
+#ifndef _INC_REGSTR
+#define _INC_REGSTR
+
+#ifdef __cplusplus
+extern "C" {
+#endif /* defined(__cplusplus) */
+
+#define REGSTR_PATH_UNINSTALL TEXT("Software\\Microsoft\\Windows\\CurrentVersion\\Uninstall")
+
+/* DisplayName <= 32 chars in Windows (otherwise not displayed for uninstall) */
+#define REGSTR_VAL_UNINSTALLER_DISPLAYNAME TEXT("DisplayName")
+/* UninstallString <= 63 chars in Windows (otherwise problems) */
+#define REGSTR_VAL_UNINSTALLER_COMMANDLINE TEXT("UninstallString")
+
+#ifdef __cplusplus
+} /* extern "C" */
+#endif /* defined(__cplusplus) */
+
+#endif /* _INC_REGSTR_H */