问题
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
回答1:
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.
回答2:
The answer in this question has a link to the SDK download until Microsoft gets its act together.
WIA Scanning issues on XP
来源：https://stackoverflow.com/questions/12049092/wia-services-2-download-and-install-on-windows-xp-7