the origin of the mysterios double slash in VD

I've been working with some virtual directories that rights to a folder on another server.

Basically the users fills out a form, i create a file on the server through the Virtual Directory, and then i autogenerate an email and send it to them with the link to the file.

if something goes haywire with the file,a nd it can't be created for somereason, when the user get's the link, it's a \\ before the file name for some reason, for example

directory\88.vcs is the standard link, but if the file isn't there, the link turns into directory\\88.vcs

anyone have anyclue why this happens? it's not really a problem with my code, it's the http or vd i think, i'm using iis 5.0, lemme know if you guys ever run into anything like this.... kinda wierd..... and unfortunate for me, heh