1. David Ross
  2. PowerBuilder
  3. Friday, 22 October 2021 12:37 PM UTC


Dev environment: PB2019 R3, v2670.

I am having issues with zipping and unzipping files with both the compressor and extractor objects. The code runs successfully on my dev machine, but when I deploy to our test box, the unzipped files are not showing up in the destination folder. When I zip files; same result. The code I'm' running is:


CompressorObject lnv_compress
Integer li_return
string ls_source, ls_target
ls_source = ItemList
ls_target = s_ZipFileName
lnv_compress = create CompressorObject
li_return = lnv_compress.Compress(ls_source,ls_target, ArchiveFormatZIP!)

if li_return <> 1 then
messagebox("Zip Error", "Error exporting JFRG Plan. Error Code: " + string(li_Return))
messagebox("Zip Success", "No Error")
end if


//Check to see if the zip file alread exists...if it does, delete it.
lb_exist = FileExists(Left(s_zipfilename, li_SourceLen - 4) + '.zip')
if lb_exist then
FileDelete(Left(s_zipfilename, li_SourceLen - 4) + '.zip')
end if

//Copy the file and change the extension; the extract object does not work with PEX file extension
li_FileNum = FileCopy (ls_source , Left(s_zipfilename, li_SourceLen - 4) + '.zip', FALSE)
ls_target = s_destpath
ls_source = Left(s_zipfilename, li_SourceLen - 4) + '.zip'

//Extract the files from the source zip to the exchange folder
li_return = lnv_extractor.extract (ls_source, ls_target)

if li_return <> 1 then
messagebox("Zip Error", "Error exporting JFRG Plan. Error Code: " + string(li_Return))
messagebox("Zip Success", "No Error")
end if

Stepping through the code, all variables are correct with no nulls or empty strings.

I downloaded Bruce Armstrong's sample code, ran that simple app, and the results are the same.  The functions for both zip and unzip return 1, so I can't capture any error codes.  The test box I'm using is using an emulated image of a typical Marine Corps IS image.  We tweaked the Group Policy objects, but that didn't help.

Has anyone else experienced this issue?


Accepted Answer
Miguel Leeuwe Accepted Answer Pending Moderation
  1. Friday, 22 October 2021 13:00 PM UTC
  2. PowerBuilder
  3. # Permalink

Did you distribute the "pbcompression.dll" runtime DLL?

Maybe a workaround would be to zip and unzip into the user's windows temporary folder and then copy the files over to its destination.

Does a Filecopy of any random file work? (without (un)zipping), just to see if it might have something to do with access rights?


  1. David Ross
  2. Friday, 22 October 2021 16:01 PM UTC
Sometimes the most obvious answer is the correct answer. I was missing the DLL. :-/

Thanks, Miguel!!
  1. Helpful
  1. Miguel Leeuwe
  2. Friday, 22 October 2021 16:05 PM UTC
:) happens to me all the time!

Please mark as resolved.

  1. Helpful
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