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Sigma Server crashes soon after startup. Anti-Virus is also on the same machine.


Sigma Server failure


Sigma Site


Sigma has worked OK previously but now the Sigma server fails every time and quickly after starting.


A new anti-virus definitions file has been downloaded either manually or automatically and has detected that a Sigma file may be suspect, this will normally be a fault of the definitions file. There will be a report in the Windows event viewer that Sigma services has failed.

Anti-Virus software is often set to move suspect files into a "quarantined" directory.  There will be a log to show this. Check these for any Sigma files quarantined.

Anti-Virus software can also be set to automatically delete suspect files.  There will be a log to show this. Check this for any Sigma files shown as deleted.

1. Disable the Anti-Virus software on either the whole of c:\sigma\data or c:\sigma\bin.

Note: The site IT may need to be involved and approval may be required.

2. Either re-instate the files from the quarantined folder or re-install Sigma.

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