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Thanks John. I'll give that a try.
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I have a client on a network. Two users are using QuickBooks Premier Professional 2010. User #1 has the database on his computer. User # 2 access that file from her workstation (multi-user mode).<br />
<br />
Up until two days ago User#2 routinely backed up the company file to her workstation. (Company file on #1, back up file on #2). When #2 attempted a backup yesterday, she received a nondescript &quot;Failed&quot; error. She tried it again today with the same result. User #1 can't even open the file. It starts to open, the Company file name appears on the top of the QuickBooks window, then fails with a &quot;connection has been lost error. Then, after several seconds, anotother error appears. &quot;Unexpected Error&quot;. C-343.<br />
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I registered the MSXML.DLL files. &nbsp;(Regsvr32 MSXML3.dll &amp;&nbsp;(Regsvr32 MSXML4.dll, but that did not help.<br />
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The file size is 311MB. <br />
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Thanks in advance for your help.
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I have a client on a network. Two users are using QuickBooks Premier Professional 2010. User #1 has the database on his computer. User # 2 access that file from her workstation (multi-user mode).

Up until two days ago User#2 routinely backed up the company file to her workstation. (Company file on #1, back up file on #2). When #2 attempted a backup yesterday, she received a nondescript "Failed" error. She tried it again today with the same result. User #1 can't even open the file. It starts to open, the Company file name appears on the top of the QuickBooks window, then fails with a "connection has been lost error. Then, after several seconds, anotother error appears. "Unexpected Error". C-343.

I registered the MSXML.DLL files.  (Regsvr32 MSXML3.dll & (Regsvr32 MSXML4.dll, but that did not help.

The file size is 311MB. 

Thanks in advance for your help.

QuickBooks 2010

Office Productivity refers both to the act of being productive and efficient in an office or professional environment, as well as the software applications used to "produce" information. This includes the development of professional skills, creating work processes, and almost any program used to create or modify a document, image, audio or video clip. However, business application suites such as Microsoft Office, which include word processing, spreadsheet and presentation programs, are typically called productivity software, as contrasted with a "utility program," such as a file manager, which is used to organize files and folders on the computer. Many office- and business-oriented groups of programs are organized into suites.