explorer.exe crashing because of msvcrt.dll

Ever since last night when I installed Mirc 6.32 its been crashing my
explorer.exe by way of a fault in msvcrt.dll. I've been able to copy the
error.

It worked fine last night but since this afternoon its been crashing. I'm
pulling my hair out its getting VERY annoying. Please help! I have Vista
Ultimate 32 bit.

Problem Event Name: APPCRASH
Application Name: Explorer.EXE
Application Version: 6.0.6001.18000
Application Timestamp: 47918e5d
Fault Module Name: msvcrt.dll
Fault Module Version: 7.0.6001.18000
Fault Module Timestamp: 4791a727
Exception Code: c0000005
Exception Offset: 00009c00
OS Version: 6.0.6001.2.1.0.256.1
Locale ID: 1033
Additional Information 1: 1e94
Additional Information 2: 301a4eede127aa9d543b6476f877e3e3
Additional Information 3: e4f2
Additional Information 4: 099356fa88ab19a131b445510749593d

Some Windows Vista functions may not work, or Windows Vista may stop
responding: http://support.microsoft.com/kb/929833

Does this crash when you run mIRC or just anytime? I run mIRC with no
problems on my Vista system...

I strongly suggest you check your machine for malware or virus infestation,
possibly hiding in your Temp folder.