This error message appears when the Windows user name contains "strange" characters like !, ¡, or #. A simple workaround is as follows:
- Open the Control Panel, double click on "User Accounts", and Create a new user (i.e. "temp").
- Login as this new user ("temp" in our example) and install CmapTools; be sure to choose "Create Icons For all users" in the "Choose Shortcut Folder" step.
- Relogin as the user with the strange characters and use CmapTools.