The IDebugSymbolGroup interface includes the following methods:
OutputAsType
AddSymbol
GetSymbolEntryInformation
ExpandSymbol
GetSymbolName
GetNumberSymbols
GetSymbolOffset
OutputSymbols
GetSymbolParameters
GetSymbolRegister
RemoveSymbolByIndex
RemoveSymbolByName
GetSymbolSize
GetSymbolTypeName
GetSymbolValueText
WriteSymbol