File Extension T$M

File type: Temporary File

The T$M file type is primarily associated with 'AVG' by AVG Technologies. AVG is anti-virus software that uses the following technologies to detect computer viruses: Scanning - searching for character strings that are characteristic of a given virus; Heuristic analysis - dynamic emulation of the scanned object’s instructions in a virtual computer environment; and Generic detection - detection of instructions characteristic of the given virus/group of viruses. When AVG encounters a locked or corrupted file it must scan it copies this file to a temporary directory with this file extension. Normally, you would not see these files as they are deleted automatically but some program versions left them after a scheduled scan. This problem was supposed to be fixed in program versions released after March 2007. If you are still seeing the behavior of mysteriously appearing .T$M files in a temporary directory update your version of AVG. See the Forum thread for more details. A special thanks to user MarkA for doing the necessary research to pin this down.

When windows gives you an error message saying that it
"Cannot open T$M files", this means either:

A. You need to identify a program that can open the file
B. Or your registry may be damaged

In both cases it is strongly recommended that you
run a free scan for registry errors.