Packages under WinNT

I'm trying to figure out what should work with respect to updating packages under WinNT (native). Is this supposed to work? Without messing with efs-tmp-name-template, I'm able to update the package list. But, when a new package file is pulled down there appears to be a problem with how temporary file names are generated. For example, when I try to update APEL to version 1.13, the file apel-1.13-pkg.tar.gz is pulled down, but rather than being put into "C:\TEMP\apel-1.13-pkg.tar.gz", a file called "C:\TEMPapel-1.13-pkg.tar.gz" is created; package update fails pretty quickly with that. Is this a problem in EFS? A problem with how names are concatenated together under the native WinNT build? A problem in my configuration? Thanks for any info, -lipp