Visual Studio 2005 memory not enough error

Question

Hi ,
I am using VS 2005 for an ERP project containing one window project on 4 DLL projects (BLL,DAL,BOL & Utilities).
as the size of project grows i keep getting this error message on almost every second build.
Error 333 Unexpected error writing metadata to file 'D:\RSPLGenericERP\RSPLGenericERPWin\obj\Release\RSPLGenericERP.RSPLGenericERPWin.exe' -- 'Not enough storage is available to complete this operation. ' RSPLGenericERPWin

what are the possible solutions for this error.