Upgrade Signal for Windows from version 1.x to 1.906
If you do not have a correctly installed copy of Signal for Windows, the upgrade will not happen.
Full documentation is available as .pdf files, if you need them immediately!
For Signal itself, use Signal2.pdf 1,812,512 bytes and for Signal scripting, use sigscr2.pdf 2,667,663 bytes.
When the form is sent, you can start the down-load.