This indicates a possible attempt to exploit a vulnerability in an ActiveX control in SwDir.dll, which is a part of Macromedia Shockwave 10. It can be exploited by remote attackers to cause a denial of service condition.
Macromedia Shockwave 10.1.4.20
Macromedia Shockwave 10.1.1
Macromedia Shockwave 10.1.0.11
Denial of Service.
Currently we are not aware of any officially supplied fix for this issue.