thanks for the reply but the thing is that i am using win2000 and fork cannot be installed on windows as stated by description of fork here Using this module only makes sense if you run on a system that has an implementation of the fork function by the Operating System. Windows is currently the only known system on which Perl runs which does not have an implementation of fork. Therefore, it doesn't make any sense to use this module on a Windows system. And therefore, a check is made during installation barring you from installing on a Windows system. Can you please suggest me something else to get out of this problem it is getting on my nerves regards Imran khalid