This depends on the application more than Windows. Viewing Hebrew (or most any non-English language) will generally require Unicode support from the application in question. For example, if I copy a bunch of Hebrew characters from Charmap, and paste them into Word, they show up fine. If however I paste them into KEDIT, they show up as just question marks. This is the difference between Unicode and Non-Unicode -supporting applications. Some applications, instead of question marks, will show just little boxes for each Unicode character.
Windows Media Player for example only recently added Unicode support... a version or two ago music I had with Unicode names (Hebrew and Russian) all just showed up as unknown characters.
You would need to find out whether the application you are trying to use supports Unicode, or plans to. Otherwise you would need to find a different application to use if you want Unicode support. What program are you using to try to view the file?