I don't know about a master Manifest.dsx file, but I found a cache of .dsx files in C:UsersPublicDocumentsMy DAZ 3D LibraryManifestFiles . These actually supply DIM with the list of installed files. You can also change this directory in DIM. Open the DIM, sign on or click run offline and start. Click the gear icon in upper right corner of DIM interface. Select the Installation tab. Look at the Manifest Directory line. Note the current location. Click the 3 dots on the Manifest Directory line and set the new destination. You will want to make a new empty directory. Call it whatever makes sense. After that, click Accept and close the DIM. If you reopen the DIM now , it will seem you have nothing installed. If you checked, close the DIM. You need to move all your dsx files to the new location. You can also copy files to new location and delete the old files later. Up to you. When the files are all transferred to the new location, open the DIM. It should show all your installed products. Future products will be saved to the new location and show up as expected. Ok?