i have deleted some temp files and some other files i thought i did need from my computer, i think i have deleted a helper driver file by mistake. On startup a message- While Initializing device IFSMGR - The Microsoft Installable File System Manager cannot find the helper driver     please ensure that IFSHLP.SYS has been installed. system halted._ can't go any further, please if someone would give me some info on how to restore the file...thanks for the help...

Dimension 4100, win ME, PIII, 40g, 1000ghz, 256ram,