MS08-033: Sikkerhedsrisici i DirectX kan tillade fjernkørsel af programkode

Oversættelser af artikler Oversættelser af artikler
Artikel-id: 951698 - Få vist de produkter, som denne artikel refererer til.
Udvid alle | Skjul alle

På denne side

INTRODUKTION

Microsoft har udgivet sikkerhedsbulletin MS08-033, der indeholder alle relevante oplysninger vedrørende sikkerhedsopdateringen. Disse oplysninger inkluderer installationsindstillinger. Du kan finde sikkerhedsbulletinen i sin fulde længde på et af følgende Microsoft-websteder:

Sådan får du hjælp og support til denne sikkerhedsopdatering

Som privat bruger kan du få gratis support ved at kontakte din lokale Microsoft-afdeling. Du finder flere oplysninger om, hvordan du kontakter din lokale Microsoft-afdeling angående support til problemer med sikkerhedsopdateringer, ved at besøge webstedet Microsoft International Support:
http://support.microsoft.com/common/international.aspx?rdpath=4
Kunder i Nordamerika kan også få adgang til ubegrænset, gratis support via e-mail eller til ubegrænset individuel support via chat ved at besøge følgende Microsoft-websted:
http://support.microsoft.com/oas/default.aspx?&prid=7552
Som virksomhedskunde kan du få support til sikkerhedsopdateringer gennem dine sædvanlige kontaktpersoner i supportsager.

Kendte problemer i forbindelse med denne sikkerhedsopdatering

  • Når du har installeret denne sikkerhedsopdatering, kan du opleve, at eksempelvisningen fra et webkamera standser uventet. Eksempelvisningen standser, når systemet registrerer en forkert MJPEG-ramme. En forkert MJPEG-ramme kan skyldes tilfældig elektrisk støj eller andre hardwareproblemer.

    Du kan undgå problemet, hvis du standser og derefter genstarter eksempelvisningen. Hvis problemet stadig opstår med jævne mellemrum, kan du prøve at slutte kameraet direkte til en USB-port på computeren. Du skal f.eks. ikke slutte kameraet til en ekstern USB-hub. Du skal også kontrollere, at alle kabler, der er sluttet til computeren, fungerer. Dårlige eller beskadigede kabler kan f.eks. være mere modtagelige over for elektrisk støj.
  • Når du har installeret denne opdatering på en computer, der kører Microsoft Windows 2000, oplever du muligvis et af følgende problemer eller evt. begge problemer:
    • Du scanner et system ved hjælp af MBSA (Microsoft Baseline Security Analyzer) 2.1 eller ved hjælp af en WSUS-server (Microsoft Windows Server Update Services). Når du gør det, viser scanningsrapporten muligvis, at opdateringen er blevet installeret, selvom dette ikke er tilfældet.
    • Rapporterne fra MBSA og WSUS viser muligvis ikke den samme status for sikkerhedsopdateringen.
    Problemet opstår på grund af et registreringsproblem i forbindelse med denne sikkerhedsopdatering.

    Det Microsoft-katalog, som bruges af WSUS og MBSA, er blevet opdateret for at løse dette registreringsproblem. Det betyder, at status for opdateringen angives korrekt, hvis du foretager en scanning på nuværende tidspunkt. Hvis scanningen angiver, at du skal installere sikkerhedsopdatering 951698, anbefaler vi, at du installerer opdateringen.

Filoplysninger

Den engelske (USA) version af denne sikkerhedsopdatering har de filattributter, der findes i følgende tabel, eller nyere filattributter. Dato og klokkeslæt for disse filer er angivet i UTC-format (Universal Time Coordinates). Når du får vist filoplysningerne, konverteres de til lokal tid. Brug fanen Tidszone under Dato og klokkeslæt i Kontrolpanel til at finde forskellen mellem UTC og lokal tid.

Alle understøttede udgaver af Windows 2000 SP4

Skjul tabellenUdvid tabellen
File nameFile versionFile sizeDateTimePlatform
Quartz.dll6.1.9.734791,82430-Apr-200816:33x86

Alle understøttede udgaver af Windows 2000 SP4 med DirectX8.1

Skjul tabellenUdvid tabellen
File nameFile versionFile sizeDateTimePlatform
Quartz.dll6.3.1.8911,665,53602-May-200803:09x86

Alle understøttede udgaver af Windows 2000 SP4 med DirectX9.0

Skjul tabellenUdvid tabellen
File nameFile versionFile sizeDateTimePlatform
Quartz.dll6.5.1.9091,222,65601-May-200805:16x86

Alle understøttede Itanium-baserede udgaver af Windows Server 2008

Skjul tabellenUdvid tabellen
File nameFile versionFile sizeDateTimePlatform
Ia64_1198f9fd975184b8c1927d9e5201c33b_31bf3856ad364e35_6.0.6001.18063_none_4b970c12f21ee417.manifestNot applicable1,05228-Apr-200819:48Not applicable
Ia64_7218096e539391fefaf91ee111626ce3_31bf3856ad364e35_6.0.6001.22167_none_5833dab4d9dddba6.manifestNot applicable1,05228-Apr-200819:48Not applicable
Ia64_microsoft-windows-directshow-core_31bf3856ad364e35_6.0.6001.18063_none_a633fd2cee122833.manifestNot applicable118,18026-Apr-200818:45Not applicable
Ia64_microsoft-windows-directshow-core_31bf3856ad364e35_6.0.6001.22167_none_a6c19b20072c2d59.manifestNot applicable118,18026-Apr-200809:09Not applicable
Package_1_for_kb951698_bf~31bf3856ad364e35~ia64~~6.0.1.0.mumNot applicable1,97528-Apr-200819:48Not applicable
Package_1_for_kb951698~31bf3856ad364e35~ia64~~6.0.1.0.mumNot applicable2,91328-Apr-200819:48Not applicable
Package_for_kb951698_server_0_bf~31bf3856ad364e35~ia64~~6.0.1.0.mumNot applicable1,41928-Apr-200819:48Not applicable
Package_for_kb951698_server_0~31bf3856ad364e35~ia64~~6.0.1.0.mumNot applicable1,43828-Apr-200819:48Not applicable
Package_for_kb951698_server_bf~31bf3856ad364e35~ia64~~6.0.1.0.mumNot applicable1,42428-Apr-200819:48Not applicable
Package_for_kb951698_server~31bf3856ad364e35~ia64~~6.0.1.0.mumNot applicable1,44328-Apr-200819:48Not applicable
Update-bf.mumNot applicable1,41528-Apr-200819:48Not applicable
X86_microsoft-windows-directshow-core_31bf3856ad364e35_6.0.6001.18063_none_a6325936ee141f37.manifestNot applicable122,93126-Apr-200809:13Not applicable
X86_microsoft-windows-directshow-core_31bf3856ad364e35_6.0.6001.22167_none_a6bff72a072e245d.manifestNot applicable122,93126-Apr-200808:58Not applicable
Quartz.dll6.6.6001.180633,864,57626-Apr-200808:46IA-64
Quartz.dll6.6.6001.221673,864,57626-Apr-200808:07IA-64
Quartz.dll6.6.6001.180631,314,81626-Apr-200808:08x86
Quartz.dll6.6.6001.221671,314,81626-Apr-200807:57x86

Alle understøttede x64-baserede udgaver af Windows Vista eller Windows Server 2008:

Skjul tabellenUdvid tabellen
File nameFile versionFile sizeDateTimePlatform
Amd64_08622faa781a67fa6f7e09f45038318a_31bf3856ad364e35_6.0.6000.20823_none_1e2c5f8402f7f4ab.manifestNot applicable1,05428-Apr-200819:48Not applicable
Amd64_45839ae41ba2e635f6fb9b35bee5a9ca_31bf3856ad364e35_6.0.6000.16681_none_808e0dadacb929f5.manifestNot applicable1,05428-Apr-200819:48Not applicable
Amd64_83064f214165954fc36185fcefb4f507_31bf3856ad364e35_6.0.6001.22167_none_9a6312b5d06d3ebe.manifestNot applicable1,05428-Apr-200819:48Not applicable
Amd64_ea83cb643bd325551570b486824fe7aa_31bf3856ad364e35_6.0.6001.18063_none_0f2b22ddccbd7bf0.manifestNot applicable1,05428-Apr-200819:48Not applicable
Amd64_microsoft-windows-directshow-core_31bf3856ad364e35_6.0.6000.16681_none_005315a8a95d04b0.manifestNot applicable120,11726-Apr-200808:40Not applicable
Amd64_microsoft-windows-directshow-core_31bf3856ad364e35_6.0.6000.20823_none_011f9475c2482ca9.manifestNot applicable120,11726-Apr-200808:14Not applicable
Amd64_microsoft-windows-directshow-core_31bf3856ad364e35_6.0.6001.18063_none_0250f4baa671906d.manifestNot applicable120,11726-Apr-200818:32Not applicable
Amd64_microsoft-windows-directshow-core_31bf3856ad364e35_6.0.6001.22167_none_02de92adbf8b9593.manifestNot applicable120,11726-Apr-200818:58Not applicable
Package_1_for_kb951698_bf~31bf3856ad364e35~amd64~~6.0.1.0.mumNot applicable2,14028-Apr-200819:48Not applicable
Package_1_for_kb951698~31bf3856ad364e35~amd64~~6.0.1.0.mumNot applicable3,08428-Apr-200819:48Not applicable
Package_2_for_kb951698_bf~31bf3856ad364e35~amd64~~6.0.1.0.mumNot applicable1,98028-Apr-200819:48Not applicable
Package_2_for_kb951698~31bf3856ad364e35~amd64~~6.0.1.0.mumNot applicable2,92028-Apr-200819:48Not applicable
Package_3_for_kb951698_bf~31bf3856ad364e35~amd64~~6.0.1.0.mumNot applicable1,98028-Apr-200819:48Not applicable
Package_3_for_kb951698~31bf3856ad364e35~amd64~~6.0.1.0.mumNot applicable2,92028-Apr-200819:48Not applicable
Package_for_kb951698_client_0_bf~31bf3856ad364e35~amd64~~6.0.1.0.mumNot applicable1,42328-Apr-200819:48Not applicable
Package_for_kb951698_client_0~31bf3856ad364e35~amd64~~6.0.1.0.mumNot applicable1,44228-Apr-200819:48Not applicable
Package_for_kb951698_client_1_bf~31bf3856ad364e35~amd64~~6.0.1.0.mumNot applicable1,36528-Apr-200819:48Not applicable
Package_for_kb951698_client_1~31bf3856ad364e35~amd64~~6.0.1.0.mumNot applicable1,38428-Apr-200819:48Not applicable
Package_for_kb951698_client_bf~31bf3856ad364e35~amd64~~6.0.1.0.mumNot applicable1,69928-Apr-200819:48Not applicable
Package_for_kb951698_client~31bf3856ad364e35~amd64~~6.0.1.0.mumNot applicable1,73228-Apr-200819:48Not applicable
Package_for_kb951698_server_0_bf~31bf3856ad364e35~amd64~~6.0.1.0.mumNot applicable1,42328-Apr-200819:48Not applicable
Package_for_kb951698_server_0~31bf3856ad364e35~amd64~~6.0.1.0.mumNot applicable1,44228-Apr-200819:48Not applicable
Package_for_kb951698_server_bf~31bf3856ad364e35~amd64~~6.0.1.0.mumNot applicable1,42828-Apr-200819:48Not applicable
Package_for_kb951698_server~31bf3856ad364e35~amd64~~6.0.1.0.mumNot applicable1,44828-Apr-200819:48Not applicable
Update-bf.mumNot applicable2,06828-Apr-200819:48Not applicable
X86_microsoft-windows-directshow-core_31bf3856ad364e35_6.0.6000.16681_none_a4347a24f0ff937a.manifestNot applicable122,93126-Apr-200808:44Not applicable
X86_microsoft-windows-directshow-core_31bf3856ad364e35_6.0.6000.20823_none_a500f8f209eabb73.manifestNot applicable122,93126-Apr-200808:01Not applicable
X86_microsoft-windows-directshow-core_31bf3856ad364e35_6.0.6001.18063_none_a6325936ee141f37.manifestNot applicable122,93126-Apr-200809:13Not applicable
X86_microsoft-windows-directshow-core_31bf3856ad364e35_6.0.6001.22167_none_a6bff72a072e245d.manifestNot applicable122,93126-Apr-200808:58Not applicable
Quartz.dll6.6.6000.166811,586,68826-Apr-200808:07x64
Quartz.dll6.6.6000.208231,586,68826-Apr-200807:49x64
Quartz.dll6.6.6001.180631,571,32826-Apr-200808:30x64
Quartz.dll6.6.6001.221671,571,32826-Apr-200808:17x64
Quartz.dll6.6.6000.166811,327,10426-Apr-200808:02x86
Quartz.dll6.6.6000.208231,327,61626-Apr-200807:41x86
Quartz.dll6.6.6001.180631,314,81626-Apr-200808:08x86
Quartz.dll6.6.6001.221671,314,81626-Apr-200807:57x86

Alle understøttede 32 bit udgaver af Windows Vista eller Windows Server 2008

Skjul tabellenUdvid tabellen
File nameFile versionFile sizeDateTimePlatform
Package_1_for_kb951698_bf~31bf3856ad364e35~x86~~6.0.1.0.mumNot applicable1,91328-Apr-200819:48Not applicable
Package_1_for_kb951698~31bf3856ad364e35~x86~~6.0.1.0.mumNot applicable2,62628-Apr-200819:48Not applicable
Package_2_for_kb951698_bf~31bf3856ad364e35~x86~~6.0.1.0.mumNot applicable1,75528-Apr-200819:48Not applicable
Package_2_for_kb951698~31bf3856ad364e35~x86~~6.0.1.0.mumNot applicable2,46428-Apr-200819:48Not applicable
Package_3_for_kb951698_bf~31bf3856ad364e35~x86~~6.0.1.0.mumNot applicable1,75528-Apr-200819:48Not applicable
Package_3_for_kb951698~31bf3856ad364e35~x86~~6.0.1.0.mumNot applicable2,46428-Apr-200819:48Not applicable
Package_for_kb951698_client_0_bf~31bf3856ad364e35~x86~~6.0.1.0.mumNot applicable1,41528-Apr-200819:48Not applicable
Package_for_kb951698_client_0~31bf3856ad364e35~x86~~6.0.1.0.mumNot applicable1,43428-Apr-200819:48Not applicable
Package_for_kb951698_client_1_bf~31bf3856ad364e35~x86~~6.0.1.0.mumNot applicable1,35728-Apr-200819:48Not applicable
Package_for_kb951698_client_1~31bf3856ad364e35~x86~~6.0.1.0.mumNot applicable1,37628-Apr-200819:48Not applicable
Package_for_kb951698_client_bf~31bf3856ad364e35~x86~~6.0.1.0.mumNot applicable1,68928-Apr-200819:48Not applicable
Package_for_kb951698_client~31bf3856ad364e35~x86~~6.0.1.0.mumNot applicable1,72228-Apr-200819:48Not applicable
Package_for_kb951698_server_0_bf~31bf3856ad364e35~x86~~6.0.1.0.mumNot applicable1,41528-Apr-200819:48Not applicable
Package_for_kb951698_server_0~31bf3856ad364e35~x86~~6.0.1.0.mumNot applicable1,43428-Apr-200819:48Not applicable
Package_for_kb951698_server_bf~31bf3856ad364e35~x86~~6.0.1.0.mumNot applicable1,42028-Apr-200819:48Not applicable
Package_for_kb951698_server~31bf3856ad364e35~x86~~6.0.1.0.mumNot applicable1,44028-Apr-200819:48Not applicable
Update-bf.mumNot applicable2,05428-Apr-200819:48Not applicable
X86_5904a9d069af804cb0b0b58d96a05161_31bf3856ad364e35_6.0.6001.18063_none_4e7ce018f1fe727f.manifestNot applicable70328-Apr-200819:48Not applicable
X86_60dd462781a882526a8a8a7969c0faae_31bf3856ad364e35_6.0.6000.20823_none_d3eccee154117654.manifestNot applicable70328-Apr-200819:48Not applicable
X86_68800842b613530caeed30caae398bd3_31bf3856ad364e35_6.0.6000.16681_none_ed3a066e22369c27.manifestNot applicable70328-Apr-200819:48Not applicable
X86_82a53201ba72daadc1b79ba56e810f59_31bf3856ad364e35_6.0.6001.22167_none_05e277b78bb127f0.manifestNot applicable70328-Apr-200819:48Not applicable
X86_microsoft-windows-directshow-core_31bf3856ad364e35_6.0.6000.16681_none_a4347a24f0ff937a.manifestNot applicable122,93126-Apr-200808:44Not applicable
X86_microsoft-windows-directshow-core_31bf3856ad364e35_6.0.6000.20823_none_a500f8f209eabb73.manifestNot applicable122,93126-Apr-200808:01Not applicable
X86_microsoft-windows-directshow-core_31bf3856ad364e35_6.0.6001.18063_none_a6325936ee141f37.manifestNot applicable122,93126-Apr-200809:13Not applicable
X86_microsoft-windows-directshow-core_31bf3856ad364e35_6.0.6001.22167_none_a6bff72a072e245d.manifestNot applicable122,93126-Apr-200808:58Not applicable
Quartz.dll6.6.6000.166811,327,10426-Apr-200808:02x86
Quartz.dll6.6.6000.208231,327,61626-Apr-200807:41x86
Quartz.dll6.6.6001.180631,314,81626-Apr-200808:08x86
Quartz.dll6.6.6001.221671,314,81626-Apr-200807:57x86

Alle understøttede x64-baserede udgaver af Windows Server 2003 eller Windows XP Professional:

Skjul tabellenUdvid tabellen
File nameFile versionFile sizeDateTimePlatformSP requirementService branch
Quartz.dll6.5.3790.31302,174,97601-May-200800:04x64SP1SP1GDR
Wquartz.dll6.5.3790.31301,291,26401-May-200800:04x86SP1SP1GDR\WOW
Quartz.dll6.5.3790.31302,174,97601-May-200800:04x64SP1SP1QFE
Wquartz.dll6.5.3790.31301,291,26401-May-200800:05x86SP1SP1QFE\WOW
Quartz.dll6.5.3790.42832,175,48801-May-200800:08x64SP2SP2GDR
Wquartz.dll6.5.3790.42831,274,88001-May-200800:08x86SP2SP2GDR\WOW
Quartz.dll6.5.3790.42832,175,48801-May-200800:05x64SP2SP2QFE
Wquartz.dll6.5.3790.42831,274,88001-May-200800:05x86SP2SP2QFE\WOW

Alle understøttede Itanium-baserede udgaver af Windows Server 2003

Skjul tabellenUdvid tabellen
File nameFile versionFile sizeDateTimePlatformSP requirementService branch
Quartz.dll6.5.3790.31303,982,84801-May-200800:03IA-64SP1SP1GDR
Wquartz.dll6.5.3790.31301,291,26401-May-200800:03x86SP1SP1GDR\WOW
Quartz.dll6.5.3790.31303,982,84801-May-200800:03IA-64SP1SP1QFE
Wquartz.dll6.5.3790.31301,291,26401-May-200800:03x86SP1SP1QFE\WOW
Quartz.dll6.5.3790.42833,982,84801-May-200800:07IA-64SP2SP2GDR
Wquartz.dll6.5.3790.42831,274,88001-May-200800:07x86SP2SP2GDR\WOW
Quartz.dll6.5.3790.42833,983,36001-May-200800:04IA-64SP2SP2QFE
Wquartz.dll6.5.3790.42831,274,88001-May-200800:04x86SP2SP2QFE\WOW

Alle understøttede 32-bit udgaver af Windows Server 2003

Skjul tabellenUdvid tabellen
File nameFile versionFile sizeDateTimePlatformSP requirementService branch
Quartz.dll6.5.3790.31301,291,26430-Apr-200813:57x86SP1SP1GDR
Quartz.dll6.5.3790.31301,291,26430-Apr-200814:01x86SP1SP1QFE
Quartz.dll6.5.3790.42831,274,88030-Apr-200813:36x86SP2SP2GDR
Quartz.dll6.5.3790.42831,274,88030-Apr-200814:17x86SP2SP2QFE

Alle understøttede 32-bit udgaver af Windows XP

Skjul tabellenUdvid tabellen
File nameFile versionFile sizeDateTimePlatformSP requirementService branch
Quartz.dll6.5.2600.33671,287,68007-May-200805:18x86SP2SP2GDR
Quartz.dll6.5.2600.33671,288,19207-May-200804:55x86SP2SP2QFE
Quartz.dll6.5.2600.55961,288,19207-May-200805:12x86SP3SP3GDR
Quartz.dll6.5.2600.55961,288,19207-May-200805:04x86SP3SP3QFE

Egenskaber

Artikel-id: 951698 - Seneste redigering: 24. november 2008 - Redigering: 3.0
Oplysningerne i denne artikel gælder:
  • Microsoft Windows Server 2003, Standard x64 Edition
  • Microsoft Windows Server 2003, Enterprise x64 Edition
  • Microsoft Windows Server 2003, Datacenter x64 Edition
  • Microsoft Windows Server 2003 Service Pack 1 på følgende platforme
    • Microsoft Windows Server 2003, Standard Edition (32-bit x86)
    • Microsoft Windows Server 2003, Enterprise Edition (32-bit x86)
    • Microsoft Windows Server 2003, Web Edition
    • Microsoft Windows Server 2003, Datacenter Edition (32-bit x86)
    • Microsoft Windows Server 2003, Enterprise Edition for Itanium-based Systems
    • Microsoft Windows Server 2003, Datacenter Edition for Itanium-Based Systems
  • Microsoft Windows Server 2003 Service Pack 2 på følgende platforme
    • Microsoft Windows Server 2003, Standard Edition (32-bit x86)
    • Microsoft Windows Server 2003, Enterprise Edition (32-bit x86)
    • Microsoft Windows Server 2003, Web Edition
    • Microsoft Windows Server 2003, Datacenter Edition (32-bit x86)
    • Microsoft Windows Server 2003, Standard x64 Edition
    • Microsoft Windows Server 2003, Enterprise x64 Edition
    • Microsoft Windows Server 2003, Datacenter x64 Edition
    • Microsoft Windows Server 2003, Enterprise Edition for Itanium-based Systems
    • Microsoft Windows Server 2003, Datacenter Edition for Itanium-Based Systems
  • Microsoft Windows Server 2003, Standard Edition (32-bit x86)
  • Microsoft Windows Server 2003, Enterprise Edition (32-bit x86)
  • Microsoft Windows Server 2003, Web Edition
  • Microsoft Windows Server 2003, Datacenter Edition (32-bit x86)
  • Microsoft Windows Server 2003, Enterprise Edition for Itanium-based Systems
  • Microsoft Windows Server 2003, Datacenter Edition for Itanium-Based Systems
  • Microsoft Windows 2000 Server SP4 på følgende platforme
    • Microsoft Windows 2000 Datacenter Server
    • Microsoft Windows 2000 Advanced Server
    • Microsoft Windows 2000 Server
    • Microsoft Windows 2000 Professional Edition
  • Microsoft Small Business Server 2000 Standard Edition
  • Microsoft Windows XP Tablet PC Edition 2005
  • Microsoft Windows XP Media Center Edition 2005
  • Microsoft Windows XP Professional x64 Edition
  • Microsoft Windows XP Service Pack 3 på følgende platforme
    • Microsoft Windows XP Home Edition
    • Microsoft Windows XP Professional
  • Microsoft Windows XP Service Pack 2 på følgende platforme
    • Microsoft Windows XP Home Edition
    • Microsoft Windows XP Professional
  • Windows Vista Ultimate
  • Windows Vista Enterprise
  • Windows Vista Business
  • Windows Vista Home Premium
  • Windows Vista Home Basic
  • Windows Vista Starter
  • Windows Vista Ultimate 64-bit edition
  • Windows Vista Enterprise 64-bit edition
  • Windows Vista Home Premium 64-bit edition
  • Windows Vista Home Basic 64-bit edition
  • Windows Vista Service Pack 1 på følgende platforme
    • Windows Vista Enterprise 64-bit edition
    • Windows Vista Home Basic 64-bit edition
    • Windows Vista Home Premium 64-bit edition
    • Windows Vista Ultimate 64-bit edition
    • Windows Vista Business
    • Windows Vista Home Basic
    • Windows Vista Home Premium
    • Windows Vista Starter
    • Windows Vista Ultimate
  • Windows Server 2008 for Itanium-Based Systems
  • Windows Server 2008 Datacenter
  • Windows Server 2008 Enterprise
  • Windows Server 2008 Standard
  • Windows Web Server 2008
Nøgleord: 
kbexpertiseinter kbpubtypekc kbfix kbbug kbsecvulnerability kbsecbulletin kbsecurity kbqfe kbexpertisebeginner KB951698

Send feedback

 

Contact us for more help

Contact us for more help
Connect with Answer Desk for expert help.
Get more support from smallbusiness.support.microsoft.com