DRM crack - Armjisoft office ownerguard advanced

[Electrickettle]

Does anyone have any experience with

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Office Ownerguard DRM or DRM in general. This software protects powerpoint .pptx files and prevents them from being accessed on other computers.

There are a number of products on the market that are similar, perhaps a similar technique that has worked for a previous product would work again?
I'd be thankful for any advice.