zld files

[propflux01]

I keep getting strange emails with " zld " extensions on the end of them. What are these, and are they virus-holders? reason I ask, is my zone alarm keeps catching them and asking me if I am REALLY SURE if I want to open them. thanx in advance. Tim

[EzyStvy]

ZL? ZoneAlarm Mailsafe Renamed File

"ZoneAlarm Mailsafe will quarantine mail attachments and changes their extension."



The conversions are:
.ADE to .ZL0, .ADP to .ZL1, .BAS to .ZL2, .BAT to .ZL3, .CHM to .ZL4,
.CMD to .ZL5, .COM to .ZL6, .CPL to .ZL7, .CRT to .ZL8, .EXE to .ZL9,
.HLP to .ZLA, .HTA to .ZLB, .INF to .ZLC, .INS to .ZLD, .ISP to .ZLE,
.JS to .Z0, .JSE to .ZLF, .LNK to .ZLG, .MDB to .ZLH, .MDE to .ZLI,
.MSC to .ZLJ, .MSI to .ZLK, .MSP to .ZLL, .MST to .ZLM, .PCD to .ZLN,
.PIF to .ZLO, .REG to .ZLP, .SCR to .ZLQ, .SCT to .ZLR, .SHS to .ZLS,
.URL to .ZLT, .ASP to .ZLT, .VB to .Z1, .VBE to .ZLU, .VBS to .ZLV,
.WSC to .ZLW, .WSF to .ZLX, .WSH to .ZLY, .ASX to .ZLZ

[propflux01]

Ok, so is it a virus carrying type of file extension? should I be worried about them?