I've replaced my version of IOText.exe with the attached (zipped) version that you have posted in the forum.
The message error do not appear anymore.
I have entered this information in the Port Address :
37888 (LPT3:378H)
When I click the "Read" button next to it, below where it says "Monitor" I can watch the value of 255.
But when I press one of two buttons of my box, or the other, or both at the same time, nothing appended. Should 255 value changes when I press one of the buttons?

I’ve tried to code in the sample csv file (receiveTTL.csv), in the time column this : rt:255,(37889)
It doesn’t work…


thanks!!