but since 02/2016 mean ClamWin Adobe Reader 11 is a Virus

this is a WinXP P System, we have many pc with WinXP P

Scan Started Tue May 09 13:37:14 2017
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WARNING: Can't open file C:\pagefile.sys: Permission denied
WARNING: Can't open file C:\WINDOWS\system32\CatRoot2\tmp.edb: Permission denied
WARNING: Can't open file C:\WINDOWS\system32\config\default: Permission denied
WARNING: Can't open file C:\WINDOWS\system32\config\SAM: Permission denied
WARNING: Can't open file C:\WINDOWS\system32\config\SECURITY: Permission denied
WARNING: Can't open file C:\WINDOWS\system32\config\software: Permission denied
WARNING: Can't open file C:\WINDOWS\system32\config\system: Permission denied

C:\Programme\Adobe\Reader 11.0\Reader\AcroBroker.exe: Win.Trojan.Agent-1364155 FOUND
C:\Programme\Adobe\Reader 11.0\Reader\AdobeCollabSync.exe: Win.Trojan.Agent-1364064 FOUND
----------- SCAN SUMMARY -----------
Known viruses: 6278849
Engine version: 0.99.1
Scanned directories: 8260
Scanned files: 36839
Infected files: 2
Data scanned: 11057.03 MB
Data read: 8860.51 MB (ratio 1.25:1)
Time: 5467.922 sec (91 m 7 s)

no other programm mean there is a Virus

Report all false positive detections of ClamWin to the Clam AV team at https://www.clamav.net/contact on the web. Be sure to select the link to report a false positive.

ClamWin uses the scan engine and virus signatures from the Clam AV project.

Keep in mind that Windows XP is no longer supported by Microsoft, so it is an unsafe platform. Also keep in mind that ClamWin is an on-demand AV--the developers recommend you use it as a backup to a real-time AV.

Thanks for using ClamWin!

Regards,