https://userapps.support.sap.com/sap/support/knowledge/en/2563957
2563957 - 'cannot load library win64_x64\btuc421.dll' error in Upgrade Management Tool during...
When migrating a .unv universe with Upgrade Management Tool (UMT) from SAP BusinessObjects Enterprise XI R2 SP5 to BOE 4.2 SP04/ 4.1 SP10, it fails with the...