I attempt to download a runescape client and a message appears, here is the message: "This installation package could not be opened. Contact the application vendor to verify that this is a valid windows installer package"


Is there any way to resolve this so I will be able to play runescape?
The client doesn't require java

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Originally Posted by asompur

I attempt to download a runescape client and a message appears, here is the message: "This installation package could not be opened. Contact the application vendor to verify that this is a valid windows installer package"


is there any way to resolve this so i will be able to play runescape?
The client doesnt require java

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Sounds like you've got a knockoff or otherwise illegal product.