Do you have some more info on the command you use, I have no problems at all archiving files wil either a single left "(", a single right ")" or both parnes in a filename
I am using WinZip 11.2 with the V2.3 commandline addon.
Cheers, Hans
PS. This is how I tested it.
C:\Documents and Settings\User>dir /b *.pst
Copy of archive2007(1).pst
Copy of archive2007(1_.pst
Copy of archive2007_1).pst
C:\Documents and Settings\User>"c:\Program Files\WinZip\wzzip" pst.zip "C:\Documents and Settings\User\Copy of archive2007(1).pst"
WinZip(R) Command Line Support Add-On Version 2.3 (Build 8094)
updating Copy of archive2007(1).pst
updating Zip file pst.zip
C:\Documents and Settings\User>"c:\Program Files\WinZip\wzzip" pst.zip "C:\Documents and Settings\User\Copy of archive2007(1_.pst"
WinZip(R) Command Line Support Add-On Version 2.3 (Build 8094)
updating Copy of archive2007(1_.pst
updating Zip file pst.zip
C:\Documents and Settings\User>"c:\Program Files\WinZip\wzzip" pst.zip "C:\Documents and Settings\User\Copy of archive2007_1).pst"
WinZip(R) Command Line Support Add-On Version 2.3 (Build 8094)
updating Copy of archive2007_1).pst
updating Zip file pst.zip
C:\Documents and Settings\User>
Also tried this without the full path spec, and also no problem there