Hello:

I have a laptop with a modem inside. Using Device Manager, from time to
time, cliking "properties" for the modem, then advanced, then advanced port
settings, then scrolling in the com list, I found that com4 and com5 are "in
use". I don't have any hardware using them.
how can know they are used by what? and in case of some error, can this list
be reset or flushed?

I used, some time ago, some virtual serial port emulators, then removed
them. I still use com-0-com which created a pair com1--com2. But normally if
a serial port was removed, it shouldn't appears "in use".

any help??

thanks
Maurice

"Maurice" <(E-Mail Removed)> wrote in message
news:Od3k1sM$(E-Mail Removed)...
> Hello:
>
> I have a laptop with a modem inside. Using Device Manager, from time to
> time, cliking "properties" for the modem, then advanced, then advanced
> port settings, then scrolling in the com list, I found that com4 and com5
> are "in use". I don't have any hardware using them.
> how can know they are used by what? and in case of some error, can this
> list be reset or flushed?
>
> I used, some time ago, some virtual serial port emulators, then removed
> them. I still use com-0-com which created a pair com1--com2. But normally
> if a serial port was removed, it shouldn't appears "in use".
>
> any help??
>
> thanks
> Maurice

PCMCIA or USB modems will appear as ComX where x > 3. I wouldn't worry about
it.

"Maurice" wrote:

> Hello:
>
> I have a laptop with a modem inside. Using Device Manager, from time to
> time, cliking "properties" for the modem, then advanced, then advanced port
> settings, then scrolling in the com list, I found that com4 and com5 are "in
> use". I don't have any hardware using them.
> how can know they are used by what? and in case of some error, can this list
> be reset or flushed?
>
> I used, some time ago, some virtual serial port emulators, then removed
> them. I still use com-0-com which created a pair com1--com2. But normally if
> a serial port was removed, it shouldn't appears "in use".
>
> any help??
>
> thanks
> Maurice


Windows 3.1 and Serial Communications
http://support.microsoft.com/kb/q92447/

An Example:
PCI-COM422/485 Series
http://www.mccdaq.com/PDFs/Manuals/pci-com422_485.pdf

http://techrepublic.com.com/5208-111...sageID=1701481


http://www.computing.net/answers/win...r-2/71577.html

"Pegasus [MVP]" <(E-Mail Removed)> wrote in message
news:uRLxA6M$(E-Mail Removed)...
>
> "Maurice" <(E-Mail Removed)> wrote in message
> news:Od3k1sM$(E-Mail Removed)...
>> Hello:
>>
>> I have a laptop with a modem inside. Using Device Manager, from time to
>> time, cliking "properties" for the modem, then advanced, then advanced
>> port settings, then scrolling in the com list, I found that com4 and com5
>> are "in use". I don't have any hardware using them.
>> how can know they are used by what? and in case of some error, can this
>> list be reset or flushed?
>>
>> I used, some time ago, some virtual serial port emulators, then removed
>> them. I still use com-0-com which created a pair com1--com2. But normally
>> if a serial port was removed, it shouldn't appears "in use".
>>
>> any help??
>>
>> thanks
>> Maurice
>
> PCMCIA or USB modems will appear as ComX where x > 3. I wouldn't worry
> about it.
>

I don't have a PCMCIA card or USB modem or anything attached.
I've a general question: How can I know which device is using a specific
ComX (marked "in use")?? is it possible??

thank you

Maurice