SCRRUN.DLL is giving platform dependency !

I am using the FileSystemObject in my dll code.
When I take my dll to another machine and try to access it in an asp/vb code then the following error is thrown:
"Class does not support automation or does not support expected interface"
When I took a copy of scrrun.dll from my machine to the target machine and re-register it there then it runs.
Also if I recompile the dll on the other machine it runs.
So my question is :
Am I supposed to ship a copy of scrrun.dll with my dlls everytime I am using the FileSystemObject or is there a workaround existing ?