Resource monitor v1.1 Is a small Windows 3.1 program which dislpays the sizes of the GDI,System and User heaps. It also shows the amount of free memory left (inc- luding virtual memory). The program updates the values every few hundred milliseconds - but the user can change the sample time. I wrote the program to help me debug the other programs that I have to write for Windows. Disclaimer: Resource monitor v1.1 is freeware - coz I don't care, but use it at your own peril etc. You can contact me at: L.S.GRIFFITHS@PHYSICS.SALFORD.AC.UK or Tel. 061-745-5000 ext 4991 0850-672-704 (mobile) If you talk nicely i'll let you have the source code. Have fun, Lee Griffiths (Techno-MIDI,VW freak), Computational Researcher, Department of Physics, University of SALFORD.