If you try to create a self-extracting Zip file and an error message displays which reads Expected Zip file header not found, it is likely that your Zip file includes the 64-bit Zip file format extensions. These extensions are used if there are more than 65,535 files in the Zip file or if the Zip file itself or any file contained in the Zip file exceeds 4GB in size.
Neither WinZip Self-Extractor Personal Edition nor WinZip Self-Extractor 4.0 can create self-extracting Zip files when a 64-bit Zip file header is encountered.
If you have any questions about this information please email Technical Support.
What are the requirements for WinZip Self-Extractor 4.0?
Information on creating self-extracting Zip files using Self-Extractor Personal Edition