Search for string with quotes in file

[John Kerr]

I am looking for a way to create a conditional build step based upon a string search in a file. I have found the script expression [InStr(vbld_FSO().OpenTextFile("%FILE%").ReadAll(), "Some String") > 0 ] in the forum to use when "Build only if macro or expression" evaluates to true. However, the string I need to search for contains quotes. Can you help? I can't fiqure out how to escape the quotes in the script expression.