DynaZIP OCX Installation Under Windows 7

We have a client who has an old in-house app that relies on the DynaZIP 32-Bit OCX Interface to run.  We’ve been trying to get it to run under Windows 7, but couldn’t find much info — but I happened to come across a text file from DynaZIP that had the dependencies on it, and it turned out we were missing a couple files; loaded them into SYSWOW64 and the OCXs register.

You need to make sure the following files are in your c:\windows\ syswow64 directory:

  • OC30.DLL
  • MSVCRT20.DLL
  • MFCANS32.DLL
  • OLE2.DLL
  • COMPOBJ.DLL
  • STORAGE.DLL
  • OLE2DISP.DLL
  • OLE2NLS.DLL
  • TYPELIB.DLL
  • DZIP32.DLL
  • DUNZIP32.DLL
  • DZOCX32.OCX
  • DUZOCX32.OCX
  • DZSTAT32.OCX

Then open a command prompt with admin privileges and run REGSVR32 on the lot of OCXs.