ISAVEBAK system variable
Function Description:
The ISAVEBAK system variable is used to increase the speed of incremental saves, especially for large drawings.
Type : Integer
Saved in : Registry
Initial value : 1
Range : 0,1
The ISAVEBAK system variable is used to control creation of bak files.
System Variable Value:
0 : do not create BAK files (the same as fully save)
1 : create BAK files
Note: in some situations(such as power failure when saving), some drawing date may missing.