PBEM file security question

[Spledge]

My apologies in advance to those that will believe this question is out of this board's purview. But it does related to us during PBEM games.

When putting one .cmt and one .nat file into a folder and then zipping that folder, an anti-virus program informs me that one "file" exist. If the same folder is left unzipped and then scanned, four "files" are said to exist.

The important question for me is, if an AV program informs me that a similar PBEM game package received from an opponent (one each of the .cmt and .nat files in a folder, all compressed) that two "files" exist and when the folder is un-compressed and scanned, that five or more "files" exist, are the perceived differences in the number of "files" between what I produce and what is received from an opponent RED FLAGS not to allow the game engine to access those files?

(Aside, the AV scan detects no known threat from the compressed or un-compressed received PBEM package described above..)

Comments from the developers of SPWW2 would be the most prized.

Thanks!