- To use KeepNETObject, you first need to load .NET/Link using Needs["NETLink`"].
- KeepNETObject allows an object to "escape" from the current NETBlock.
- It only has an effect if the object was in fact slated to be released by that block.
- The object is promoted to the "release" list of the next-enclosing NETBlock, if there is one. The object will be released when that block ends (unless KeepNETObject is called again in the outer block).