where can I get this file KCRUidWebUtils.h?
Where have you fond the reference to it and why do you need it?
Indeed. Currently there are 0 hits on Google about this file (this thread has not been indexed by the time of writing), so it is not amongst the most widely available (or even just known) ones.
while compiling helix source code, it pointed me to this file
in comments it was written, this file is provided by Nokia.
also I am not able to find
Well, the situation is as follows:
All the public APIs are to be found in the S60 SDKs published by forum Nokia. Several extension plug-ins, with special license and possibly with no binary compatibility promise (see their release notes) are provided to extend SDK's capabilities.
If a given API is not accessible through either of the above described resources the only solution is to contact the API owner (S60 or Symbian) and to request access to the API under a partnering agreement/license.