data carrier and file naming convention in DMS

Hi all PLM expert,

I want to know what is the file naming convention in DMS when it is stored temporally on local PC..

whenever i view file from DMS on local pc some times it stores file as

1. _xxx or

2. temp_xxx

where xxx is sap login id.

the defined data carrier is PC with path c:\temp but files are stored on c:\ directly

the other defined data carrier is DT with path c: does it affecting..

Shiv