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I've written a application that scans images from a scanner. this works fine on my development machine (win7 ultimate sp1 64bit).
i've tried to run the app on a windows xp machine (or windows server 2008 standard) and it failed with this error
System.Runtime.InteropServices.COMException (0x80040154): Retrieving the COM class factory for component with CLSID {E1C5D730-7E97-4D8A-9E42-BBAE87C2059F} failed due to the following error: 80040154 Class not registered (Exception from HRESULT: 0x80040154 (REGDB_E_CLASSNOTREG)).
it seems that the machines are missing the WIA dlls.
when looking around microsoft site for the installation files, i've failed to find them.
so my question are, where can i find the installation files ? and can i install WIA 2 on XP?
OrenL
The answer in this question has a link to the SDK download until Microsoft gets its act together.
WIA Scanning issues on XP
The error message means the control is not installed properly on the machine (your windows xp and windows server 2008).
Are you developing a control to implement the image scanning feature? If yes, you need to register the dll file you've created on the client machine, not the WIA dll.