Thank you Steve - it works now and info are not anymore mixed.
Doing the modifications, I found two interesting errors:

1. If you dont insert a space between WAIT and the parenthesis, there is no errors at compilation but it does not work.

2. My system sends information between three spots - I modified between spot 2 and 3, it worked and then when I dit it between 1 and 2, I wrote HSERIN [WAIT ($),b1,b2,...] instead of HSERIN [WAIT ("$"),b1,b2,...] and while compiling, I got the usual windows error message saying "XP is closing the PbP246 compiler, should we send a message to big brother of R ?"
This is the first time I get such an error during compilation - it took me a long time to find the error - I thought first that my computer had caught a new virus or something.

In general , I must thank all the participants of this forum and especially a few of them (big donators of their time and experience). I 'm an old engineer and without your help, it would have been very difficult for me to start using PICs and to find the huge quantity of information in all your messages.
When I start a new design, I have ideas how to solve the problem but my first action is consulting your pages (usually, one of you has already had to solve the same problem and I will find here other points of view, other ideas and this is very encouraging).
It was the first time, I asked a question and a few hours later, Steve solved the problem and I discovered that I had not read with enough attention the manual.
I hope I will be able to bring also some of my small experience to you if I know one answer to a question.

Best regards to all the users,

Michel