I was curious and founds some links that may shed a slight amount of light on the murk.. just googling your error.

Seems some people have seen this with VB and someone with Java too I believe. (the Java one said "restart your machine").

The second link below mentions it with VNC and the reply was: Try changing the use_DeferredUpdates setting in the VNCHooks preferences for the problem application to zero.

http://news.devx.com/cgi-bin/dnewsweb.exe?cmd=article&group=enterprise
+.dcom&item=796&utag=
http://www.realvnc.com/pipermail/vnc-list/2001-May/022278.html
1710 The object universal unique identifier (UUID) was not found. RPC_
+S_OBJECT_NOT_FOUND

http://msdn.microsoft.com/library/default.asp?url=/library/en-us/rpc/r
+pc/rpc_return_values.asp

http://www-3.ibm.com/software/network/dce/library/publications/dceaix_
+22/a3u2l/A3U2L124.HTM
0x16c9a01b rpc_s_object_not_found 
Text: Object not found 
Severity: 
Component: rpc 
Explanation: Information was requested, for example, through rpc_objec
+t_inq_type, about an object that is unknown to the RPC runtime. 
Action: Call rpc_object_set_type or rpc_object_set_inq_fn if appropria
+te.
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