WSA blocking install of latest NullDC emulator. Any advice?

Ive tired to install the above (I have an older version of NullDC 1.04 on my PC which runs without any problems). I downloaded the latest version 1.0.4.136 which I then  extracted with 7Zip. When I tried to run it, WSA blocked two files as bad and removed them. NullDC refuses to launch without them. The files are:
nulldc_gui_win32.dll
 
nulldc_104_r136emitter_win32.dll
 
Why has it done this? Are these files malicious, or are they false positives? A copy of the scan log is below:
 
Sun 13-10-2013 11:07:35.0351 >>> Service started [v8.0.4.17]
Sun 13-10-2013 11:07:58.0974 User process connected successfully from PID 768, Session 1
Sun 13-10-2013 11:08:07.0247 Connecting to 45 - 45
Sun 13-10-2013 11:21:49.0938 Begin passive write scan (14 file(s))
Sun 13-10-2013 11:21:50.0765 Infection detected: c:usersgeorgedownloadsulldc_104_r136ulldc_gui_win32.dll [MD5: E861A37876E3F9FD114AF07A149EA494] [3/00000000] [Win32.Gabpath]
Sun 13-10-2013 11:21:50.0765 File blocked in realtime: c:usersgeorgedownloadsulldc_104_r136ulldc_gui_win32.dll [MD5: E861A37876E3F9FD114AF07A149EA494, Size: 303616 bytes] [0/00000003] [Win32.Gabpath]
Sun 13-10-2013 11:21:50.0765 Determination flags modified: c:usersgeorgedownloadsulldc_104_r136ulldc_gui_win32.dll - MD5: E861A37876E3F9FD114AF07A149EA494, Size: 303616 bytes, Flags: 00000020
Sun 13-10-2013 11:21:50.0765 Infection detected: c:usersgeorgedownloadsulldc_104_r136emitter_win32.dll [MD5: 619CBE160C6C5DD11B7C9E3DA6611B5D] [3/00000000] [Win32.Gabpath]
Sun 13-10-2013 11:21:50.0765 File blocked in realtime: c:usersgeorgedownloadsulldc_104_r136emitter_win32.dll [MD5: 619CBE160C6C5DD11B7C9E3DA6611B5D, Size: 72704 bytes] [0/00000003] [Win32.Gabpath]
Sun 13-10-2013 11:21:50.0765 Performing cleanup entry: 1
Sun 13-10-2013 11:21:50.0765 Determination flags modified: c:usersgeorgedownloadsulldc_104_r136emitter_win32.dll - MD5: 619CBE160C6C5DD11B7C9E3DA6611B5D, Size: 72704 bytes, Flags: 00000020
Sun 13-10-2013 11:21:50.0874 Performing cleanup entry: 2
Sun 13-10-2013 11:21:51.0061 End passive write scan (14 file(s))
Sun 13-10-2013 11:21:52.0886 Scan Started:  [ID: 3 - Flags: 1025/0]
Sun 13-10-2013 11:21:55.0211 Connected to C1
Sun 13-10-2013 11:21:56.0537 Scan Results: Files Scanned: 476, Duration: 3s, Malicious Files: 0
Sun 13-10-2013 11:21:56.0537 Scan Finished: [ID: 3 - Seq: 80043716]
Sun 13-10-2013 11:24:05.0616 Saved the product log to C:UsersGeorgeDocumentsscan.log
 
Automated Cleanup Engine Starting Cleanup at 13/10/2013 - 10:21:50 GMT
Starting Routine> Removing c:usersgeorgedownloadsulldc_104_r136ulldc_gui_win32.dll...#(PX5: DF3555E90051619DA24804E371B426001C0E533F - MD5: E861A37876E3F9FD114AF07A149EA494)... Deleting File> c:usersgeorgedownloadsulldc_104_r136ulldc_gui_win32.dll
Automated Cleanup Engine Starting Cleanup at 13/10/2013 - 10:21:50 GMT
Starting Routine> Removing c:usersgeorgedownloadsulldc_104_r136emitter_win32.dll...#(PX5: 7422EF010007B6501C230128D484D70029368796 - MD5: 619CBE160C6C5DD11B7C9E3DA6611B5D)... Deleting File> c:usersgeorgedownloadsulldc_104_r136emitter_win32.dll
 
 
Ive submitted a report, but wondered has anyone else had the same problem? If so, what`s the solution?
Kind Regards
George