1. When I log onto my computer the following appears on the screen:
windows/system32/MSA64CHK.dll
Module not found
2. When I try to log onto my ISP the taskbar lights up with Virtual memory minimum too low.
(Windows is increasing the size of your virtual memory paging file)
3. Often when using the computer the whole system crashes and the word
DRIVER_IRQL_NOT_LESS_OR_EQUAL comes onto the screen whilst the computer does a memory dump.

I am very grateful for any help that you can offer me, as I said before I am not particularly good with computers so please bear that in mind.

Thanking you in ANTICIPATION
msa64chk.dll (mostrar dialer) - Details

If your computer has a file called 'msa64chk.dll' on it, you may have a dialer program known as 'mostrar' INSTALLED on your computer. This program is usually added to a system manually by running an installer, when you visit certain websites (whether intentional or accidental). The mostrar process will take over the modem in your pc and attempt to phone overseas or high-toll telephone numbers.

msa64chk.dll is considered to be a security risk, not only because antivirus programs flag mostrar dialer as a virus, but ALSO because a number of users have complained about its PERFORMANCE.

mostrar dialer is likely a virus and as such, presents a serious vulnerability which should be fixed immediately! Delaying the removal of msa64chk.dll may cause serious harm to your system and will likely cause a number of problems, such as slow performance, loss of data or leaking private information to websites.
Remove Mostrar
About Mostrar

Mostrar is a premium-rate dialers used by porn sites. The dialer drops a fille named msapasrc.dll on the system. The file implements search hooks to monitor the data entered in the address bar.

How to Remove Mostrar?

Follow these removal instructions to remove Mostrar from your computer:

1. Open the Registry Editor ( click Start > Run, type 'regedit' and click Ok).
2. Navigate to the key: 'HKEY_LOCAL_MACHINE \ SOFTWARE \ Microsoft \ Windows \ CurrentVersion \ Run'.
3. In the right PANE, delete the value named 'MP3NumberOne' or 'ContentDownload'.
4. Search and delete the following key:
HKEY_LOCAL_MACHINE \ SOFTWARE \ Classes \ CLSID \ {582788CA-7014-4904-A4EE-6FB6108AFE8E}
5. Reboot the computer.
6. Delete the following files using Windows Explorer:

%System%\msa64chk.dll
%System%\msapasrc.dll

Note: %System% is a variable, you should replace it with the system directory in your computer, by default this is C:\Windows\System (Windows 95/98/Me), C:\WINNT\System32 (Windows NT/2000), or C:\Windows\System32 (Windows XP).

Thank you, I am going to attempt this now.
I will follow the instructions that you have given me. I may seem a bit dippy but what do I have to do to replace the %system% in my computer?
thanksplz back up register if you are going to mess with it.

i suggest letting spybot search and destroy and avg anti-spyware have a goHave run spybot and loads of spy things came up. Cannot find the files to delete when I follow the instructions to run the regedit.
Any Ideas?
Also, computer is crashing a lot at the moment several times a day. Do you have any advice about the DRIVER_IRQL_NOT_LESS_OR_EQUAL


ThanksQuote from: kerry1red on May 14, 2007, 02:08:22 PM

Thank you, I am going to attempt this now.
I will follow the instructions that you have given me. I may seem a bit dippy but what do I have to do to replace the %system% in my computer?
thanks