wiaManager = new WiaClass(); // create COM instance of WIA manager

Have been using:
wiaManager = new WiaClass();        // create COM instance of WIA manager
without problem for image acquisition in XP but in VISTA this fails with error:
Image Acquisition Failed: Retrieving the COM class factory for component with CLSID
Can you please suggest how to resolve this.
cehrnowAsked:
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PlatoConsultantConnect With a Mentor Commented:


Compile the project again in Windows Vista and Add the Windows Image acquisition  reference again as the windows xp and Vista Has seperate versions of WIA . this is the problem...
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cehrnowAuthor Commented:
Development machine is XP - is there a way to build an XP/Vista compatible version in XP ?
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PlatoConsultantCommented:
there are two methods ,
1. VMware virtual Machine for testing
2. Windows Vista Upgrade Advisor
 

Using VMWare Virtual Machine

Get the free trial DVD of Windows Vista and install that as a guest OS using VMWare Workstation 6.0 on your Windows XP computer. Now install the software titles on this Vista Virtual Machine without affecting your existing XP setup. Alternatively, if you have a spare computer, install Vista directly bypassing the VMWare route.


Using Windows Vista Upgrade Advisor


Microsoft released a new version of Windows Vista Advisor software today. Run this program on your XP computer and it will prepare a software compatibility report with a list of programs that might exhibit problems after the upgrade to Vista.

http://www.microsoft.com/downloads/details.aspx?familyid=42b5ac83-c24f-4863-a389-3ffc194924f8&displaylang=en&tm

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