poorman

Thanks Wraithdu! I sure did miss that. Confusing to me but I certainly appreciate your reply. I'm gonna try 7-zip.

So the results are a little disappointing. I compiled the script on a 64 bit system and I get the same results. I see the @SystemDir is still c:windowsSysWOW64. Would it be true if I change the line (787) in _Zip.au3 in the _Zip_DllChk() that contains @SystemDir & "zipfldr.dll" to "C:\Windows\System32\zipfldr.dll" would this force the script to use the 64 bit version? Or can I make some other modification to force the use of the 64 bit version, such as what I found in the help file but I'm unclear where to put it. I think I should just make this one of the first lines in MY script. So I tried that AND it still fails at 8 gig with the message saying the file is corrupt. Any further help is appreciated! <FROM HELP FILE> It is possible to access the 64-bit version of those directories by disabling the redirection mechanism. DllCall("kernel32.dll", "int", "Wow64DisableWow64FsRedirection", "int", 1) </FROM HELP FILE>

Many thanks for the reply! It is surely appreciated. After reviewing the material it looks like if I could get to the 64 bit version of the zipfldr.dll I should be able to put all the files in the folder previously mentioned (25) 2 gig files in one zip. So I'm guessing that I would need to compile the script on a 64 bit machine to make this work. I'll get access to one later today or tomorrow (the boss don't want it on the server) and update this thread with the progress either way.

I guess I should have posted this is being developed and complied on Win XP 32 bit. The complied version is then put on Windows Server 2008 R2 64 bit. Will it use the 32 bit zipfldr from XP or does it find the zipfldr from Server R2 64 bit? Also When I get the @SystemDir from Server 2008 R2 it points to C:WindowsSysWOW64. Thanks again!

Hey all, First I love this UDF for zipping files. While _Zip_AddItem in a large folder (25 - 2gig files) I receive an error message (looks to be from Windows not AutoIT or the UDF) saying "The Compressed (zipped) Folder is invalid or corrupted". This happens when it is only 20% complete. The zip file is is almost 8 gig when I get this message. The script does work in smaller folders without any problem. Also I think the zip is NOT corrupt because I can open it and extract files. I guess I'm running into a limitation of some sort. Any help or insight would be appreciated. Thanks!