rs232 not work on another PC (WinXP)

[microera 0]

Hi

Serial communication work on one PC but not work on another!

Why?

I get blank Error message!

And at console this:

----------------------------------

>Running:(3.3.6.1):C:\Program Files\AutoIt3\autoit3.exe "J:\AutoIt\IRrec\CommgExample.au3"

flow = 2

stage 1

stage 2

at 64

return from set timeouts = 1

at 67

----------------------------------

p.s.

I can select port and parameters but nothing work

[Ghost21 0]

Make sure the serial dlls. are in the same folder.

[microera 0]

Both folders and files in it are equal!

I get only blank message window with errors (with no error in it)....?!

[microera 0]

I try to sniff with Portmon form sysinternals:

http://technet.microsoft.com/en-us/sysinternals/bb896644

and on 1st PC all working OK!

But on 2nd PC (both PCs have WinXP) serial port initializing not working at all!

?