Thursday, October 30, 2008

Invalid class string (Exception from HRESULT: 0x800401F3 (CO_E_CLASSSTRING))

Hi and welcome to another post from Non-Stop BizTalk!

Had a virus or a trojan a couple of days ago on my Windows Server 2003 test machine. After I performed a scan-clean procedure, I luanched BIDS (Business Intelligence Development Studio) to work with the Adventure Works Cube Project sample. When I tried to browse the Adventure Works.cube, the browser failed to load and the exception Invalid class string 
(Exception from HRESULT: 0x800401F3 (CO_E_CLASSSTRING)) was thrown.
I followed the steps available here, which is re-installing the 
Microsoft Office 2003 Web Components, and this solved my problem.



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