When setting the online symbol server in inviromental setting. Ida will look online, onces attached to process, and retrieve any symbols it can, for the current process. Setting the _NT_SYMBOL_PATH environment variable The common Microsoft debugging tools use the SymSrv technology if you provide the correct symsrv syntax in the _NT_SYMBOL_PATH environment variable. These tools automatically include whatever you provide in the variable as the symbol path. You can set this variable as a system variable or as a user environment variable. To do this from the desktop, right-click My Computer, and then click Properties. On the Advanced tab, click Environment Variables. Code (Text): Set _NT_SYMBOL_PATH = symsrv*symsrv.dll*f:\localsymbols*http://msdl.microsoft.com/download/symbols loads all it can you can check when debugging in WINDBG shell command to check symbol server path. Code (Text): WINDBG>.sympath Symbol search path is: C:\Users\****\Downloads;symsrv*symsrv.dll*f:\localsymbols*http://msdl.microsoft.com/download/symbols Expanded Symbol search path is: c:\users\****downloads;symsrv*symsrv.dll*f:\localsymbols*http://msdl.microsoft.com/download/symbols ************* Symbol Path validation summary ************** Response Time (ms) Location OK 15 C:\Users\****\Downloads Deferred symsrv*symsrv.dll*f:\localsymbols*http://msdl.microsoft.com/download/symbols Offcause this works with any engine using windbg.