Ok, and this is mostly a please question, remembering the old addage and unfunded feature request is called a wish

 

in the file include_upload.asp

 

can you add the following lines
   sInputName=replace(sInputName," ","_")

   just below the line

   sInputName = CWideString(MidB(biData, nPosBegin, nPosEnd-nPosBegin))

and     

    sFileName=Replace(sFileName," ","_")
    just below the line

    sFileName = CWideString(MidB(biData, nPosBegin, nPosEnd-nPosBegin))

    

That way if there are spaces in the filename (the most common culprit on an invalid name), they will be replaced with underline characters.  Otherwise, I will have to keep changing the underlying source file everytime there is a new release.  I suspect that there are other users who will find this feature helpful.