Hi,

   I am using dot Trace 3.5 Memory and when i try to get a snapshot of an application running on .net 4 framework by hitting "Get Snapshot" or "Dump Memory" the profiler just hangs and i can see from the event viewer that the w3wp.exe process crashed.

This happens everytime i try to get a memory snapshot. I am using windows 2003 service pack2.

Please let me know if any other details are required

This is the info i get from the Event Viewer

Event Type: Error
Event Source: .NET Runtime
Event Category: None
Event ID: 1023
Date:  2/16/2011
Time:  12:30:45 PM
User:  N/A
Computer: TLPFBRWS
Description:
Application: w3wp.exe
Framework Version: v4.0.30319
Description: The process was terminated due to an internal error in the .NET Runtime at IP 7914EFC9 (79140000) with exit code 80131506.

For more information, see Help and Support Center at http://go.microsoft.com/fwlink/events.asp.

Event Type: Error
Event Source: .NET Runtime 4.0 Error Reporting
Event Category: None
Event ID: 1000
Date:  2/16/2011
Time:  12:30:47 PM
User:  N/A
Computer: TLPFBRWS
Description:
Faulting application w3wp.exe, version 6.0.3790.3959, stamp 45d6968e, faulting module clr.dll, version 4.0.30319.1, stamp 4ba1d9ef, debug? 0, fault address 0x0000efc9.

For more information, see Help and Support Center at http://go.microsoft.com/fwlink/events.asp.
Data:
0000: 41 00 70 00 70 00 6c 00   A.p.p.l.
0008: 69 00 63 00 61 00 74 00   i.c.a.t.
0010: 69 00 6f 00 6e 00 20 00   i.o.n. .
0018: 46 00 61 00 69 00 6c 00   F.a.i.l.
0020: 75 00 72 00 65 00 20 00   u.r.e. .
0028: 20 00 77 00 33 00 77 00    .w.3.w.
0030: 70 00 2e 00 65 00 78 00   p...e.x.
0038: 65 00 20 00 36 00 2e 00   e. .6...
0040: 30 00 2e 00 33 00 37 00   0...3.7.
0048: 39 00 30 00 2e 00 33 00   9.0...3.
0050: 39 00 35 00 39 00 20 00   9.5.9. .
0058: 34 00 35 00 64 00 36 00   4.5.d.6.
0060: 39 00 36 00 38 00 65 00   9.6.8.e.
0068: 20 00 69 00 6e 00 20 00    .i.n. .
0070: 63 00 6c 00 72 00 2e 00   c.l.r...
0078: 64 00 6c 00 6c 00 20 00   d.l.l. .
0080: 34 00 2e 00 30 00 2e 00   4...0...
0088: 33 00 30 00 33 00 31 00   3.0.3.1.
0090: 39 00 2e 00 31 00 20 00   9...1. .
0098: 34 00 62 00 61 00 31 00   4.b.a.1.
00a0: 64 00 39 00 65 00 66 00   d.9.e.f.
00a8: 20 00 66 00 44 00 65 00    .f.D.e.
00b0: 62 00 75 00 67 00 20 00   b.u.g. .
00b8: 30 00 20 00 61 00 74 00   0. .a.t.
00c0: 20 00 6f 00 66 00 66 00    .o.f.f.
00c8: 73 00 65 00 74 00 20 00   s.e.t. .
00d0: 30 00 30 00 30 00 30 00   0.0.0.0.
00d8: 65 00 66 00 63 00 39 00   e.f.c.9.
00e0: 0d 00 0a 00               ....