From stack overflow
Unable to load Client Print Control!
Everytime, clients wanted to print report by clicking the button print on their report viewer, they always got this error message.
I had spent nearly two weeks to fix this problem.
My environment is:
– Window Server 2003 Standard Edition R2
– Report Server Version 10.X.X.X
– Clients with windowXP SP3
My Solution is:
– Replacing the CAP file (RSClientPrint-x86.cab) in C\Program Files\Microsoft SQL
Server\MSRS10.MSSQLSERVER\Reporting Services\ReportServer\bin\
– Extract the RSClientPrint-x86.cab and destribute it to clients.
Hear is the CAB file: https://sites.google.com/site/narithsite/Home/RSClientPrint-x86.cab?attredirects=0&d=1
Michael Ellerbeck 
I have been looking for a fix to this serious problem since 2006. At this point, I generally get clients to export to PDF and print from there. In the 80s, I could do work in a HALF DAY that was better quality than what typically takes a MONTH with this poorly conceived product. (There’s no way to reliably nest or chain reports? What? Do these clowns think you print out purchase orders one at a time, export them to PDF one at a time, for 100 orders? Have any of these people worked in the real world?) Microsoft is a toy operating system, made for home consumers.