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When I start the game through the official website I get the follow error: "The game is loaded only through the official Website" even thought I'm starting from the official website.

When I click "game start" the launcher restart and I need to click it again to start the game, and I believe that it may be the cause of the error.

Am I missing something?

i found this: but i don't understand the type of language or way to run it

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up vote 1 down vote accepted

i've found out a way to fix this, go to the mu folder, for example:

C:\Program Files (x86)\WEBZEN\Mu

and make sure in main.exe, "Run this program in compatibility mode" is set as "Windows XP (Service Pack 3)", and "Run this program as an administrator" is set as-well

then click on Windows + R and write:


then, on CMStarterCore.exe do the same

Click here to see the image

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what if you have download mu in D: drive? – user49277 May 29 '13 at 9:32
what D: drive? – João Melo May 30 '13 at 13:33
@sub Then go to D:\Program Files (x86)\WEBZEN\Mu instead? – SevenSidedDie May 30 '13 at 23:37
as @SevenSidedDie said, go to D:\Program Files (x86)\WEBZEN\Mu and when doing Windows+R and going to C:\ProgramData\WEBZEN\BrowserPlugIns, probably the folder keeps the same, but the best thing to do , is to try C:\ProgramData\WEBZEN\BrowserPlugIns and D:\ProgramData\WEBZEN\BrowserPlugIns, if it opens a folder with CMStarterCore.exe , it's probably that folder. The C:\Program Files (x86)\WEBZEN\Mu depends on Mu install location, and C:\ProgramData\WEBZEN\BrowserPlugIns depends on windows installed driver. – João Melo May 31 '13 at 10:13

Game directory : "main" >compatibilty> xp service pack 3 and admin

Program Data > Webzen > Browser Plugins > CMStarterCore > Do the same thing as main .

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protected by Community Jun 26 '13 at 13:41

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