How to communicate with device connect via Com 1?

hi, I have a device connect to Com1 & I want to retrieve data from this device, what is the command should I use in VB? I already try to use MSComm, but still cannot. Any idea, pls help...thanks..
meAloneAsked:
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DrMaltzConnect With a Mentor Commented:
Yes, MSComm provides the means to communicate to a hardware device via COM ports, but you must have the Protocol the device.  The protocol determines the commands and how they have to be issued to the device.  Have you contacted the manufacturer of the device?  Are they willing to provide you with the protocol?  If so.. you're good to go.. if not, you may have to reverse engineer the communication..
Here are a few software vendors that provide protocol analyzer software.  
 http://www.sinnovations.com/  
 http://www.angelfire.com/biz5/USDM/index.html  
 http://www.runmode.com/  
 http://www.greenleafsoftware.com

Good Luck,

DrMaltz.
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DanRollinsCommented:
Hi meAlone,
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    Accept DrMaltz's comment(s) as an answer.

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SpideyModCommented:
per recommendation

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