Error expanding macros in property Message

[jan]

Hi,

I have a step in my build script that sends an email. The message body of the email comes from a (dynamic) html file. I include it in this way:

[vbld_FSO.OpenTextFile("%TEMP_LOG%").ReadAll()]

Sometimes (I suspect when % signs are being used within the dynamic file) the following error occurs:

Error expanding macros in property Message: <Error parsing macros: Unrecoverable Parse Error at position 2859 - expecting percent_sign>

Could it be that the loaded content is being parsed? If yes, how can I prevent this parsing from happening?

Thanks in advance,

Jan