Abstract: A bolt lock is described for attachment to a blade collar of a concrete saw. The bolt lock stabilizes the position of a blade collar mounting bolt thereby preventing the bolt from loosening, which could otherwise result in the blade disengaging from the concrete saw.

Abstract: The invention provides a bolt lock for attachment to the blade collar of a concrete saw. The collar serves to stabilize the position of the blade collar bolt thereby helping to prevent the bolt from loosening, which can in turn lead to the blade falling off the concrete saw.

Abstract: A method to protect a file system form a viral infection may include flagging the program in response to opening a local file on a local file system to perform a read operation and opening a shared file on shared or network file system to perform a write or append operation on the local file. The program may also be flagged in response to the program reading or opening itself and the program attempting to write or append itself or any content to the shared file on the shared or network file system or to write or append itself or any content to the local file on the local file system. The program may also be flagged in response to the program attempting to write or append the local file to the shared or network file system and to preserve a filename of the local file in the shared or network file system. The program may also be flagged in response to the program attempting to write or append a remote file to the local file system.

Abstract: A technique is provided to organize different virus signatures into anti-virus sets to minimize the impact on processor utilization due to the scanning of computer viruses. All of the virus signatures assigned to an anti-virus set share a common characteristic. The defined anti-virus sets are then associated with an executing agent so that whenever the executing agent's target file is accessed, the target file is scanned with virus signatures stored in the previously assigned anti-virus set to determine if the target file is contaminated with a virus.