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Invalid File Format in 4.1

Invalid File Format in 4.1

Invalid File Format in 4.1

Hi Guys,

I'm running ACCPAC 4.1 Corporate series with Pervasive SQL on a Win NT 4.0 server.  Evey so often when my accounting people try to access any icon within the modules, they get "Invalid file format".  I have to reinstall the System Manager Software back onto the server, then it works fine.  I perform data integrity checks and the tables are fine.  Any insights or ideas?  Any help would be greatly appreciated.


RE: Invalid File Format in 4.1


We have this problem as well.. We run Accpac over Citrix metaframe and at least once a day we start getting these errors. Rebooting the servers solves it, until the next time. Does anybody have any clue as to why this is happening and how I can get rid of it??

RE: Invalid File Format in 4.1

Hi JuicyV,

I found out what the problem was.  It was a virus infecting the files.  We had done a couple of scans but found nothing.  We then reinstalled and saved a copy of the good files to another computer.  When the problem re-occured and I compared the saved files with the problem files, I noticed their file sizes had increased by a fixed amount.  These were files that weren't supposed to change.  I emailed the file to someone who I new had several virus checkers and found a variant of the Magistr virus.

Hope this helps.

RE: Invalid File Format in 4.1

Hi Paisan

Thanks for that, it definitely sheds a bit of light, but could you tell me which Files exactly did you find that had been infected? Program files or data, and their location?


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