Virus

[frodo and the magiccards]

everytime i want to start this game i got a message that is infected by a virus now i deleted the item and the game cant start my virus program is AVG2015

[EaglePrince]

I assume that somehow the file was infected... Did you scan your entire PC with an antivirus, and/or some malware removal too? I'd make sure that it's clean - clean as it can be, and then reinstall the game / verify the game cache. Perhaps verifying the game cache would work too, but I would still advice you to scan the PC.
Regards!

[sewellio]

program from firefly 100% does not contain a virus so either you already have a bad one on your pc or you pirated the game and it was attatched with one from the uploader.

[The Skirmish Lord]

The anti virus issue is nothing new and Firefly's response can be found on their support page:
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"1) Do you have an anti-virus program installed on your computer?

Lots of games have problems with overprotective anti-virus programs. If you are using anti-virus please make sure Stronghold Crusader 2 has been added to your list of exceptions. Please consult your anti-virus manual for instructions on how to do this. The default installation path for the Stronghold Crusader 2 game file is C:\Program Files (x86)\Steam\Steamapps\common\Stronghold Crusader 2\bin\win32_release\Crusader2.exe
"
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Take a look
http://support.fireflyworlds.com/index.php?/Knowledgebase/Article/View/144/13/general-toubleshooting

[EaglePrince]

In that case, it would be welcome if you told us what antivirus do you have. If it is Avast for example, and Avast didn't find any such virus for me, then it's about your PC being infected. At least I would assume so.