[firebird-support] invalid request BLR at offset 326

[frank.quirk]

I get the following error accessing FreeAdhocUDF on Windows 7 x64.
'invalid request BLR at offset 326'
The problem occurs with both FBx64 using x64UDF and FBx32 using x32DLL's
Runs fine on Windows XP.
Your help will be much appreciated.