I don't exactly understand: Do you get an error message, or does Windows come up with a popup saying it doesn't know what program to open your file with? Also, what file type did you download (ZIP file, program, PDF, etc.)?
Because Windows sometimes blocks downloaded files, you might have to unblock them. The following is from the Windows Help: How blocking some attachments helps protect your computer Sending and reading e-mail is one of the most popular activities on the Internet. The widespread use of this technology, however, makes it a primary way for computer viruses to spread. Because viruses and other security threats are often contained in e-mail attachments, Microsoft Windows XP Service Pack 2 (SP2) helps protect your computer by blocking e-mail attachments that might be harmful. In most cases, Windows XP SP2 will block files that have the potential to harm your computer if they come to you through e-mail or other communication programs. Windows will block these files if your program is running in a strong security mode. Most files that contain script or code that could run without your permission will be blocked. Some common examples of this file type are those with file names that end in .exe, .bat, and .js. Blocking these files is very important to do, since directly opening files of this type poses a risk to your computer and personal data. If you are certain that you trust this file and want to open it, follow the instructions below. Save the file onto your computer. Click Start, click My Computer, and navigate to the file that you saved. Right-click the file that you saved, and then click Properties. Click Unblock near the bottom of the dialog box.
Ooops... the blank areas on my above post are either the words "blocked" or "files." Highlight the blanks to see... sorry, I don't know why that happened.
more info please! like what type of file do you want to open, what is the file extension e.g. .exe, .zip .msc etc. etc
yeah sorry well basically im tring to install adobe flash player ive got it from Adobe they said it was a free download i done that an got the installer on my desktop now when i try to start the installe i keep gettin this message: NSIS Error the installer you are trying to use is corrupted or incomplete this could be a result of a damadge disc, failed download or a virus. you may want to contact the author of the installer to get a new one and then it says i may be able to skip this by using the/NCRC command line switch but it says this is not recommended. pleases tell me that you no how to fix this problem thank for your help mate
