XP-compatible version confused me for a month

[roy19831015]

because i want to add a self-define function to pdfium project ,in order that i can draw a crossline on the signature appearance, but neither the project build by PdfiumBuild or latest GOOGLE official version i build was not able to be compatible with XP, usually ended with strange errors.

so, i need the latest XP-compatible version of pdfium that you solve those problem instead of providing the release binary pdfium.dll, i have to make some changes inside it.

btw, the location i am staying is far from google, everytime i download something from google is suffering. i tried for a month, but still couldn't solve it.

oh, Pdfiumbuild project i complied and runned, but the version i made out stiil can't be used for xp.
the dbghelp.dll is not usefull for me , my xp version is sp3, i put dbghelp.dll in the same dir with pdfium, but it tell me can't find function "InitOnceExecuteOnce", as i know ,this function is not a XP-compatible one. I also disabled all the function called,but the error turn to be an overflow in "FPDF_LoadPage", as i said ,it's strange.

thanks for helping ,it's a bit urgent.

[roy19831015]

is there anybody could help me?