Ok, we solved it. The attached registry patches are confusing. I had a Windows 10 (64-Bit) with Outlook 2013 (32-Bit) but the Patch for 32-Bit Outlook didnt't work. So i tried the 64-Bit Patch and now it works. Why? I don't know but it seems that the 64-Bit Patch is the right one for both versions of Outlook.
Ok, we solved it. The attached registry patches are confusing. I had a Windows 10 (64-Bit) with Outlook 2013 (32-Bit) but the Patch for 32-Bit Outlook didnt't work. So i tried the 64-Bit Patch and now it works. Why? I don't know but it seems that the 64-Bit Patch is the right one for both versions of Outlook.