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MAC changes in .VMC file

Source: microsoft.public.virtualpc
Sent: 11/17/2004
From: Ryan Smith
Message:

File is located in c:/program files/microsoft virtual PC DIR. We use a
shortcut to point to the .VMC file. Every time a new user logs in Virtual PC
re-writes the .VMC file <ethernet section.

In this section:

<ethernet_card_address type="bytes">0003FF7D77DC</ethernet_card_address>
<is_dynamic_assignment type="boolean">true</is_dynamic_assignment>

Change "is_dynamic_assignment" to false and we should not attempt to
change it.
--
Cheers,
Benjamin Armstrong
===============================
Virtual machine Program Manager

Thanks Ben however the string didn't help. I want to make sure I have
injected the change correctly. I added string: <is_dynamic_assignment
type="boolean">true</is_dynamic_assignment> after the string:
<ethernet_card_address type="bytes">0003FF7D77DC</ethernet_card_address> and
replaced true with false. When I logged off and logged in with a different
user. VPC replaced the MAC with a random address and removed string:
<is_dynamic_assignment type="boolean">false</is_dynamic_assignment>
It's as if, when VPC is launched for the first time it clears out the code
and adds it in fresh again. We have tried to make this file read only but we
get an access denied error. We would use the version without the service pack
however, the service pack fixes a printing issue we had.
Thanks again for your help,
Ryan

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Related Messages

RE: MAC changes in .VMC file

Sent: 11/18/2004
From: Ryan Smith
Message:

After a call to microsoft we found this problem to be a bug.

We have been digging around and noticed, if we change the reg key:
hkeylocalmachine\system\currentcontrolset\services\vpcnets2\parameters\nextguestid
to 0 and copy a the directory c:\documents and settings\olduserid\appliction
data\microsoft\virtual pc to c:\documents and settings\newuserid\appliction
data\microsoft\virtual pc and create directory my documents\my virtual
machine the application will no longer edit the file.

"Ryan Smith" wrote:

Show quoted text

> File is located in c:/program files/microsoft virtual PC DIR. We use a
> shortcut to point to the .VMC file. Every time a new user logs in Virtual PC
> re-writes the .VMC file <ethernet section.
>
> In this section:
>
> <ethernet_card_address type="bytes">0003FF7D77DC</ethernet_card_address>
> <is_dynamic_assignment type="boolean">true</is_dynamic_assignment>
>
> Change "is_dynamic_assignment" to false and we should not attempt to
> change it.
> --
> Cheers,
> Benjamin Armstrong
> ===============================
> Virtual machine Program Manager
>
>
> Thanks Ben however the string didn't help. I want to make sure I have
> injected the change correctly. I added string: <is_dynamic_assignment
> type="boolean">true</is_dynamic_assignment> after the string:
> <ethernet_card_address type="bytes">0003FF7D77DC</ethernet_card_address> and
> replaced true with false. When I logged off and logged in with a different
> user. VPC replaced the MAC with a random address and removed string:
> <is_dynamic_assignment type="boolean">false</is_dynamic_assignment>
> It's as if, when VPC is launched for the first time it clears out the code
> and adds it in fresh again. We have tried to make this file read only but we
> get an access denied error. We would use the version without the service pack
> however, the service pack fixes a printing issue we had.
> Thanks again for your help,
> Ryan
>
>
>

RE: MAC changes in .VMC file

Sent: 11/18/2004
From: "Scott Baker" <(email address - cut out)>
Message:

Thanks for following up with your results.

Scott

bug.
the reg key:
s2\parameters\nextguestid
settings\olduserid\appliction
settings\newuserid\appliction
documents\my virtual
PC DIR. We use a
user logs in Virtual PC
type="bytes">0003FF7D77DC</ethernet_card_address>
type="boolean">true</is_dynamic_assignment>
not attempt to
make sure I have
<is_dynamic_assignment
string:
type="bytes">0003FF7D77DC</ethernet_card_address> and
in with a different
removed string:
type="boolean">false</is_dynamic_assignment>
clears out the code
file read only but we
without the service pack
had.

Show quoted text

>-----Original Message-----
>After a call to microsoft we found this problem to be a
>
> We have been digging around and noticed, if we change
>hkeylocalmachine\system\currentcontrolset\services\vpcnet
> to 0 and copy a the directory c:\documents and
>data\microsoft\virtual pc to c:\documents and
>data\microsoft\virtual pc and create directory my
>machine the application will no longer edit the file.
>
>"Ryan Smith" wrote:
>
>> File is located in c:/program files/microsoft virtual
>> shortcut to point to the .VMC file. Every time a new
>> re-writes the .VMC file <ethernet section.
>>
>> In this section:
>>
>> <ethernet_card_address
>> <is_dynamic_assignment
>>
>> Change "is_dynamic_assignment" to false and we should
>> change it.
>> --
>> Cheers,
>> Benjamin Armstrong
>> ===============================
>> Virtual machine Program Manager
>>
>>
>> Thanks Ben however the string didn't help. I want to
>> injected the change correctly. I added string:
>> type="boolean">true</is_dynamic_assignment> after the
>> <ethernet_card_address
>> replaced true with false. When I logged off and logged
>> user. VPC replaced the MAC with a random address and
>> <is_dynamic_assignment
>> It's as if, when VPC is launched for the first time it
>> and adds it in fresh again. We have tried to make this
>> get an access denied error. We would use the version
>> however, the service pack fixes a printing issue we
>> Thanks again for your help,
>> Ryan
>>
>>
>>
>.
>

Post Reply | This is Spam! | Mark as Spam

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