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IMPORTANT: Note that many software-related issues can be resolved simply by making sure you have the latest  version of the program installed. Updates for our programs are released periodically that contain new features and bug fixes. In many cases, if you are encountering a problem it may have already been addressed in an update and you'll only need to install the update to fix your problem. There are usually two versions of the program available at any time - the current official release and a beta version with the most up to the minute changes.

Frequently Asked Questions


What is the current version of PETRAPro?

With what operating systems is the program compatible?

PETRAPro is compatible with Windows XP, Vista, 7, 8, 10 and 11.


How do I find the version number or serial number of the program I am using?

To locate the version or serial number, click on the Help menu and select About PETRAPro.


I am having trouble downloading or processing my data and I need to send in the temp file (jamar.jcd) and I don’t know how to do this.

The default location of the .jcd file "JAMAR.JCD" is C:\Program Files\JAMAR\Petrapro, however you can change the location where they are downloaded to so you may need to check that particular setting.  You can check where the .jcd files are downloading to by opening PETRAPro and going to File=>Aquire=>JAMAR.

This will bring up the download screen. On that screen there is a field that says “Sending Temporary file to:…” and there is a data path listed.  This is where your .jcd file is going each time you download.

To email the .jcd file to us at JAMAR just compose an email in your email client and use the attach function within the email client and simply browse to the specified location and select the file JAMAR.JCD and email it to  Be sure to put your Name and contact info as well as a brief description of what exactly is happening and any error messages your receiving.



The .JCD file is re-written each time you download, so if you need a JCD file from counter x, but have downloaded Y and Z since then, you would need to “re-dump” counter x to have the JCD file be correct.

I cant see my network drives on Windows 10.  How can I fix this?


This section contains steps that modify the registry. Incorrectly editing the registry may severely damage your system or make your system unsafe. Before making changes to the registry, you should back up any data on the computer. For more information about how to back up and restore the registry, see article 322756 in the Microsoft Knowledge Base (


To work around this problem, configure the EnableLinkedConnections registry value. This value enables Windows Vista and Windows 7 to share network connections between the filtered access token and the full administrator access token for a member of the Administrators group. After you configure this registry value, LSA checks whether there is another access token that is associated with the current user session if a network resource is mapped to an access token. If LSA determines that there is a linked access token, it adds the network share to the linked location.

To configure the EnableLinkedConnections registry value

1. Click Start, type regedit in the Start programs and files box, and then press ENTER.

2. Locate and then right-click the registry subkey HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System.

3. Point to New, and then click DWORD Value.

4. Type EnableLinkedConnections, and then press ENTER.

5. Right-click EnableLinkedConnections, and then click Modify.

6. In the Value data box, type 1, and then click OK.

7. Exit Registry Editor, and then restart the computer.


*Info taken from


I am getting Run Time Error 52 when I start PETRAPro.

This error indicates a problem with the ‘Recent Files’ list.  It is a relatively fast and easy fix, but you MUST have admin access to your PC.  If you do not have local Administrator access, you will need to get someone who does to do this step.



This fix requires that you enter the Windows registry.  Errors made in the Windows Registry can cause major computer problems.  Be sure to do nothing other that which is stated in these instructions.  If you do not feel you are familiar enough with computers then it is best to find another who can do this with confidence.


With all programs closed go to Start=>Run and type in ‘regedit’ and hit OK.  This will launch the Registry editor.  On the left side you will see a folder tree.  Scroll to the top and find HKEY_CURRENT_USER and click on the plus box next to it to expand it.


Under HKEY_CURRENT_USER find ‘software’ and click the plus box next to software to expand.  Now scroll down until you see ‘VB and VBA Program Settings’ and again expand it with the plus box next to it.


Now you should see the listing PETRAPro.  Expand the appropriate one and then look for ‘Recent Files’.  Click one time on Recent Files.  This will highlight the folder and the icon will change to look like the folder is open.  You will also see some lines of text appear in the right window.  With ‘Recent Files’ selected (and only ‘Recent Files’ selected) press the Delete key on your keyboard.  You will see the ‘Recent Files’ folder disappear.  Now simply hit the X in the upper right corner to close the registry.  Now you can open and use the program.


Run Time Error 75 (this error can appear in a variety of situations).

This error can appear in many parts of both TRAXPro and PETRAPro.  However, it always means the same thing.  Permissions.  RTE 75 is a permissions issue, meaning you may not have the right permission level for the drive that you’re trying to save a file to, or open a file from.  This same error can also take the place of several other errors which may tell you that you don’t have a certain permission level in Windows. You may not have the right permissions in the registry for some of the functions in the programs to work.  First, check the version of Windows you are running. If you are using Windows Vista or 7, the program can be set to 'Run as an Administrator'.

If you are using Windows XP you will typically need your administrator open up your access.  If it is a network drive they need to make sure you have read/write/modify access to that drive or specific drive location.

You may need to unlock access to C:\Program Files\JAMAR as well, you would want full read/write/modify permission to this folder and all subfolders.

If the error happens when simply doing a function in the software that usually indicates that you are locked out of the registry entries that need to be free.  To fix this you need to have an admin unlock the programs registry key.



This fix requires that you enter the Windows registry.  Errors made in the Windows Registry can cause major computer problems.  Be sure to do nothing other that which is stated in these instructions.  If you do not feel you are familiar enough with computers then it is best to find another who can do this with confidence.


The Keys that need to be unlocked are:

HKEY_CURRENT_USER\Software\VB and VBA Program Settings\Traxpro


HKEY_CURRENT_USER\Software\VB and VBA Program Settings\Petrapro

To unlock them you simply right click the key and select permissions from the list that appears.  Add the user to the full permissions list, then close the registry.

My TRAXPro or PETRAPro keeps prompting me for Administrator Credentials in the User Access Control (UAC)  I am not an administrator, how can I get rid of that?

In Windows Vista as well as later in Windows 7 Microsoft added the User Access Control, this was done for security purposes to make sure that you the user are in control of your PC.  This has led to a few complications, however, one of them being that certain customers who are not Administrators on their own PC, will be prompted for Admin credentials every time they attempt to launch TRAXPro or PETRAPro.  The solution for this is quite simple.  There is a file for each program known as the manifest file.  You simply need to delete this file.

For PETRAPro the file is C:\Program Files\JAMAR\Petrapro\Petrapro.exe.manifest

For TRAXPro the file is C:\Program Files\JAMAR\Traxpro\Traxpro.exe.manifest

If you had previously set the programs "Compatibility Mode" to "Run as Administrator" you may need to uncheck that after removing the manifest file.

*Note*    If using a 64 bit operating system, the Program Files folder will actually be “Program Files(x86)"

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