You need to change the value of SizeOfStackCommit in IMAGE_OPTIONAL_HEADER32 structure from 4096 to 65536. It's pretty easy with OllyDbg (http://www.ollydbg.de/version2.html), open the executable, press Alt+M, at the top, there should be an entry that says "PE header" under Contains column and "CoD2SP_s" under Owner column, double-click it then in the window that opens, find SizeOfStackCommit, double-click it, type 65536 in (Un)signed field, confirm, right-click on SizeOfStackCommit->Edit->Copy to executable, OK the message prompt, right-click anywhere in the window that opens and click Save file... and save it under the different name.