Hello Everyone I have a .net problem with ObjectDBX and the Sheet Set Manager. I have a program that looks at a sheet set and turns a layer(s) off for all the sheets. This all works fine, and saves each sheet. The problem is that it will not release the sheet and the file remains locked for editing. I tried setting the axdbdocument to nothing, that did not work. I also tried to destroying all the objects in the sub, that did not work. If anyone has a suggestion let me know.