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What is the use of adding a dummy printer device as a part of sequence base image RRS feed

  • Question

  •  

    Hi,

     

    Could anyone explain why a dummy printer device should be a part of sequence image ( mentioned as a part of Sequencer workstation configuration in  microsoft squencing guide)?

     

    Thanks & Regards,

    S.Yuvaraj.

    Tuesday, October 14, 2008 9:50 AM

Answers

  •  

    It is to ensure that the entire Registry key for printers isn't virtualized.  This would mean you couldn't use any printers on the local machine when using that application.  This would only occur if you application installs a printer and I will have to be honest I haven't seen this happen too frequently.  But if you are setting up your image for Sequencing, it and a Dummy DSN are a must have.

     

    mattmcdermott

    Tuesday, October 14, 2008 9:13 PM
    Moderator
  • He's referring to the base build that you install the sequencer on. The idea is that the sequencer only records changes it needs so if you put a dummy DSN and printer in there before you use the sequencer it doesn't record all the settings for DSN's and printers if they are created as part of any application sequence.

     

    If you don't do this for printers for example you record lots more settings. When you install your first printer it creates and populates a whole hive of settings. Subsequent printers only add a little information to this on the specific printer that is added. If you capture all the printer settings and then install the virtual app on machine that already has printers then you run the risk of overwriting some settings that may be specific to that PC with ones that are specific to your sequencing PC. 

     

    If you have lots of different printer, desktops, laptops etc it becomes very difficult to predict what the effects will be.

     

    Play safe and create a fake DSN (for database connectivity) and a fake printer to avoid any problems.

     

    Hope this helps,

     

    Jon

    • Proposed as answer by znack Friday, May 28, 2010 9:49 PM
    • Marked as answer by Aaron.ParkerModerator Sunday, November 18, 2012 5:46 PM
    Wednesday, October 15, 2008 12:23 PM

All replies

  •  

    It is to ensure that the entire Registry key for printers isn't virtualized.  This would mean you couldn't use any printers on the local machine when using that application.  This would only occur if you application installs a printer and I will have to be honest I haven't seen this happen too frequently.  But if you are setting up your image for Sequencing, it and a Dummy DSN are a must have.

     

    mattmcdermott

    Tuesday, October 14, 2008 9:13 PM
    Moderator
  • Hi,

     

    Thank for your reply. Could you briefly explain about the image for sequencing?

    Thanks in advance.

     

    Yuvaraj.

     

    Wednesday, October 15, 2008 9:33 AM
  • He's referring to the base build that you install the sequencer on. The idea is that the sequencer only records changes it needs so if you put a dummy DSN and printer in there before you use the sequencer it doesn't record all the settings for DSN's and printers if they are created as part of any application sequence.

     

    If you don't do this for printers for example you record lots more settings. When you install your first printer it creates and populates a whole hive of settings. Subsequent printers only add a little information to this on the specific printer that is added. If you capture all the printer settings and then install the virtual app on machine that already has printers then you run the risk of overwriting some settings that may be specific to that PC with ones that are specific to your sequencing PC. 

     

    If you have lots of different printer, desktops, laptops etc it becomes very difficult to predict what the effects will be.

     

    Play safe and create a fake DSN (for database connectivity) and a fake printer to avoid any problems.

     

    Hope this helps,

     

    Jon

    • Proposed as answer by znack Friday, May 28, 2010 9:49 PM
    • Marked as answer by Aaron.ParkerModerator Sunday, November 18, 2012 5:46 PM
    Wednesday, October 15, 2008 12:23 PM