HTTP errors on device!

[Byak@]

my program start Script in thread (BasicLib.dll) and Script run CallHostSub with http response.
on desctop all work but on device i have diffrent errors!

Response code: -1
ServerProtocolViolation

if url "http://ya.ru"
and

Response code:501
Not Implemented

if utl "http://pda.yandex.ru"

help!

 

[Byak@]

code of celled sub

Sub ortgetpage(ortn,url,codepage)
'ErrorLabel(ortgetpageerr)
req.new2(url,codepage)
resp.new2(codepage)
req.method="Get"
req.timeout=90000
resp.value=req.getresponse
ss=resp.getstring
resp.close
Return ss
ortgetpageerr:
resp.close
Return "%err%"
End Sub