Glad to hear you were able to virtualize this successfully. I am currently using the latest version, still in my tria period. I can see the .dll file in the %SystemSystem% folder, and can see it successfully added during the build process. I started with WriteCopy isolation but tried all the others just to see if they would have different results. I did try the Merged Isolation in the package.ini, but did not do Fast Compression. I will try it again to see if this makes any difference. Just out of curiosity, what version of Heat are you on, and are you using an Oracle backend?