these questions have been asked countless times on the forum and finnaly i will make this topic to clear all doubts about these subjects.
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How to install .rar files
First of all you must know that all files of the forum except pics are posted on rar or zip format. this is an compressed type of format and you can put normal files like .sis or .jar in a single .rar or .zip file. the files must be in these formats in order to be posted in the forum.
in order to open these files you must have WINRAR or WINZIP installed on your computer. however i advise you to install winrar because its the best one.
the process to get the files you want from the rar file is very simple:
you just open the rar file, right click on the file you want to extract and choose "extract to specified folder". then choose the folder which you want the file to be placed in.
OR you can just drag the file to the folder you want to place the file in your pc but you must have that folder opened on the explorer.
select all files on the rar file and do the same process if there is more then one file on the .rar file.
then all you need to do is select the .sis or .jar file (or any other) and transfer it to your phone through the methode you wish (bluetooth, infrared, cable)
But there is another way to do this.
the methode i have shown above is for people who use the pc. for people who use their phone to download files you can also use a special app called ZIPMAN.
this app is very simple to use. just send the .rar file to your phone and you can extract the files you want right there on your phone, with this app, not having to use the pc.
This link leads to WINRAR and WINZIP= http://www.iphone-forum.org/viewtopic.php?t=16898
this is the link of where to find ZIPMAN= http://www.iphone-forum.org/viewtopic.php?t=15420
if you have any further doubts about this please post them here and i will update this post when necessary
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How to play META-inf/class files games
Sometimes we come across some games, usualy java games (.jar format) that appear to be .rar files. so when you open these files you find a lot of files and folders like meta files and image files.
these files are part of the java game itself so the .rar file is actually a .jar file.
what you need to do is rename the extension of the .rar file that has all those folders and files to .jar and send it to your phone. this will able you to install the games as a usual java game.
sometimes you don´t even have to rename the extension. just tansfer the .rar file to your phone and it will appear as .jar file.
as i said above any questions that regard this tutorial about rar games can be posted in this topic. i will update this post any time i feel necessary to add more informations as the doubts appear.
hope that everyone reads this topic and that no more repitidous questions about this matter appear.
Best Regards
Mark_6600