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how can detect which devise is using Com1 ?

Windows 2K3, Citrix PS 4.0
I would like to make Com1 available for a particular device. It doesn't show up as part of the available coms in device manager, which i am assuming means that a device is usinbg it.
1) How can i detect who is using it.
2) How can i switch the device that is using it to use a different Com so i can use Com1 ?

Please reply ASAP.

Thank you!

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2PiFL

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adg080898

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scrathcyboy

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winpro2000

ASKER

Thank you all for your answers, but i actually dont even have the ports listed under device manager. I think i will have to new hardware and select communication ports the install drivers for this port, which i don;t know what driver i would need to install at this poiny. hp or microsoft??

That being said. What do you think i should start with at this point/

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scrathcyboy

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winpro2000

ASKER

I am talking about the OS doesn't even see any ports in device manager. Citrix has nothing to do with this issue except that it will be used to publish a program that will use Com1. So i would like to make the port available.
What i also did is adding hardware component from device manager, then choosing ports. Although there is exclamation mark (meaning driver is not installed) i went to the porperty of this port (The OS assigned Com3 by default) port settings\ advanced and tried to switch the com to Com 1 but it was in use as well as Com 2.
In Device manager \ View by Connection, I looked for IRQ 4 and it was used by ACPI processor. Does that make sense?
Of course i called HP to find out how it can be changed, and they do not recomend changing the IRQ in the Bios.
I wonder what is your thoughts on this.

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scrathcyboy

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winpro2000

ASKER

I will check tomorrow what does the bios says. But as i said the bios uses IRQ 4 for ACPI processor. Can this be easily changed to use a different IRQ??

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scrathcyboy

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winpro2000

ASKER

Device manager says Com1 is in use.

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scrathcyboy

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winpro2000

ASKER

I got you now. I couldn't restart the server because it is a production server.
I will do it tonight hopefully. As soon as i do i will let you know.

winpro2000

ASKER

Here is the update. Take a look at the attached file. I would like to hear your thoughts
adding-serial-port.doc

scrathcyboy

so it was the BIOS change that did the trick? I thought so. Good luck.

winpro2000

ASKER

Yes, it was the Bios.. Good job and thank you for your help!
However i have to add this. Even though i disabled EMS who was using Com1 and Bios serial port that was set to Auto and i set it to Com2, When the system booted up i saw Com1 was still in use. I ignored the warning message and i changed it anyway. Com1 was changed and the OS see Com1 finally as a free bird!!