1.  Is Windows COMPLETELY up to date on all maintenance?
2.  You indicate this error opening some projects.  What happens in new projects started in X3e?
4.  FYI, That module seems to be the PC4K S-Type Bus Compressor.
5.  Does PCS-BusCM.dll exist in C:\Program Files\Cakewalk\Shared Utilities\Internal?
6.  Can you download and run a free utility, called DependencyWalker, and send the results to me?  I will send you a PM with my email address.  (I will review and post the findings here, after looking at the log file you send me).  DependencyWalker is a wonderful and free program that you can use to analyze Sonar, and it will go through and figure out everything that gets called from Sonar, and posts versions of detected components and such, presenting its findings in a really nice output report.
 
Once you download it, click File>Open, and navigate to C:\Program Files\Cakewalk\SONAR X3 Producer, and double-click on 'SONARPDR.exe'.  Dependency Walker will take a couple of minutes to analyze Sonar, and will produce an online report.  Click File>Save As, and give it a name and save it with its default type of 'dwi'.  Then, attach that to an email and send it to me - look in your Private Messages folder for the one I am about to send you, which will have my email address in it.
 
Thanks, 
 
Bob Bone
 
 
 

My first thought on reading this post was "this is exactly the same machine". It may, or may not, be the cause of these issues, but there may be a conflict with the driver of another device, or peripheral, on your machine. I run the same CPU, same model m/board, but a different memory and audio interface so I don't feel I can be that much help, but I would definitely start looking at what device or peripheral you could swap out to start eliminating these as well.
I feel your pain, these issues are real "tear your hair out" trials and I know how my heart sinks when I think I have the problem licked and then it rears its ugly head again.
Will keep an eye on this issue.

Sorry to hear this is causing trouble.  Filing the problem reports (sending the minidumps) is the best way for us to move forward on this.  Support is still the best option.  Be sure to provide any details they're asking for.  Rest assured we'll be looking into the matter.  
 
Thanks for your patience.
 
Keith

Thank you for all the help and ideas on this and Bob, thanks for you generous offer, will do.
1. Yes, this is Win7 64 Pro with all the latest updates as of yesterday.
2. This is a project that was created in X3e
3. Yes, thats correct.
4. the PCS-BussCM.dll is in the correct C:\Program Files\Cakewalk\Shared Utilities\Internal path.
 
Keith, thanks for checking in and I continue to send the ongoing mini dumps to Dean as they occur.

We really use the Pro Channel exclusively now because of the powerful effects included. The puzzling thing is that X1 in all its incarnations ran flawless on the exact same configuration with many more potential conflict/apps installed  than this ultra clean install. And to be clear, this isn't a similar configuration as the X1 install, its the same audio hardware and computer install ( bios, settings, driver versions, memory, video, cpu, hard drives, ect ) and the same order and version of plug ins.
It always returns the same info each time on the fault report:

----------------------------------------------------------------------

Problem signature:
  Problem Event Name:    APPCRASH
  Application Name:    SONARPDR.exe
  Application Version:    20.0.5.352
  Application Timestamp:    5320c501
  Fault Module Name:    PCS-BusCM.dll
  Fault Module Version:    1.0.0.182
  Fault Module Timestamp:    521d8bfd
  Exception Code:    c0000005
  Exception Offset:    0000000000005c17
  OS Version:    6.1.7601.2.1.0.256.48
  Locale ID:    1033
  Additional Information 1:    1f14
  Additional Information 2:    1f148a24dfa4340065133386e53d5f6e
  Additional Information 3:    fa70
  Additional Information 4:    fa70401bec3d3cf32402a08215af4102

----------------------------------------------------------------------------

As I understand it, c00005 is a kind of access violation dealing with the Runtime Library involved but beyond that, its all Greek to me. Have re-installed X3 several times but keeps producing the same result.

Again, very appreciative of the help and input here! The guys at Product Support are great and incredibly helpful at what, I'm sure, is a frustrating job and somehow they maintain clarity, these guys are true pros.

Bob,
 
Ran the Dependency Walker and it has found several missing files, hmm? will send you the results when I get you PM and thanks for the help.

I checked PCS-BusCM.dll file on my system. It is 321,024 bytes when I Right click -> Properties on the file itself. Please check your end I suggest... cheers...

I'm not sure if this has been mentioned but are you running Sonar "As Administrator"?
Did you install it "As Administrator"?

Alex, good idea to check for file size, I checked and it is the exact size of yours as well. ( the comedic possibilities are endless here lol )
 
And yes, all the installs including the patches are done 'as admin'.

Well, maybe it's time to check for paranormal activity in the area.

Craig,
I know right?! I mean, I'm not saying it's aliens or anything....
 
 
 
 
...but it's probably aliens