This is one strange error. When this error occurs, it stops my Default web Site, FTP site and administration web site in IIS4. Here&#039;s the error message :<BR><BR>A trappable error occured in an external object. The script cannot continue running.<BR><BR>Looking closely at my code I found that I was calling a function that I have assigned to the String object through the prototype property. Using the method properly, instead of calling it as function, I dont get that error message anymore.<BR><BR>Even though I dont call these functions anymore, there&#039;s still a risk to see my web and ftp stopped.. Is there another solution than not assigning these functions to my String object ?<BR><BR>Thanks, Jeb