Jagd, You have to "save as" with Vista. So, if someone sends you a zip with a txt extension, just save it as its name.zip as a new file.
Example: SpitVb.zip.txt you right click the file and save as: SpitVb.zip It will caution you about changing the file attributes, just ignore it and save as without the TXT extension.
Example: SpitVb.zip.txt you right click the file and save as: SpitVb.zip It will caution you about changing the file attributes, just ignore it and save as without the TXT extension.