https://community.intel.com/t5/Software-Archive/Linking-error-while-working-with-Module/m-p/953285#M20125 You need to add a USE of the module in the main program, so that it can see the definition of BruWiz_Release. Without that, it assumes it's an external routine.<BR /><BR />Steve Fri, 01 Jun 2001 08:59:00 GMT Steven_L_Intel1 2001-06-01T08:59:00Z https://community.intel.com/t5/Software-Archive/Linking-error-while-working-with-Module/m-p/953284#M20124 In my project, i have a module which has a subroutine BruWiz_Release() which actually calls the COMReleaseObject (pObject).. I call this sub (BruWiz_Release()) from the main once i want to get rid of the object.. This module compiles o.k., but while linking i get an error saying : <BR /> <BR />main.obj : error LNK2001: unresolved external symbol _BRUWIZ_RELEASE@0 <BR />run/bru1.exe : fatal error LNK1120: 1 unresolved externals <BR />Error executing link.exe. <BR /> <BR />Now if i comment the call statement calling this BruWiz_Release(), it works fine.. Note that there is no argument passed on to the sub..it doesn't required one.. <BR /> <BR />Please help me to work this out.. <BR /> <BR />thanks, <BR />hari nair Fri, 01 Jun 2001 07:05:06 GMT https://community.intel.com/t5/Software-Archive/Linking-error-while-working-with-Module/m-p/953284#M20124 Intel_C_Intel 2001-06-01T07:05:06Z https://community.intel.com/t5/Software-Archive/Linking-error-while-working-with-Module/m-p/953285#M20125 You need to add a USE of the module in the main program, so that it can see the definition of BruWiz_Release. Without that, it assumes it's an external routine.<BR /><BR />Steve Fri, 01 Jun 2001 08:59:00 GMT https://community.intel.com/t5/Software-Archive/Linking-error-while-working-with-Module/m-p/953285#M20125 Steven_L_Intel1 2001-06-01T08:59:00Z