diff --git a/src/WINNT/afsd/afsd.h b/src/WINNT/afsd/afsd.h
index 2176154fce..17835aea49 100644
--- a/src/WINNT/afsd/afsd.h
+++ b/src/WINNT/afsd/afsd.h
@@ -111,6 +111,7 @@ extern int cm_fakeGettingCallback;			// 1 if currently updating the fake root.af
 
 extern int cm_dnsEnabled;
 extern int cm_freelanceEnabled;
+extern int cm_readonlyVolumeVersioning;
 
 extern long rx_mtu;
 
diff --git a/src/WINNT/afsd/afsd_init.c b/src/WINNT/afsd/afsd_init.c
index faf7422684..e6813ed63b 100644
--- a/src/WINNT/afsd/afsd_init.c
+++ b/src/WINNT/afsd/afsd_init.c
@@ -68,6 +68,7 @@ DWORD cm_mountRootLen;
 clientchar_t cm_mountRootC[1024];
 DWORD cm_mountRootCLen;
 
+int cm_readonlyVolumeVersioning = 0;
 int cm_logChunkSize;
 int cm_chunkSize;
 
@@ -1238,6 +1239,14 @@ afsd_InitCM(char **reasonP)
     } 
     afsi_log("CM PerFileAccessCheck is %d", cm_accessPerFileCheck);
 
+    dummyLen = sizeof(DWORD);
+    code = RegQueryValueEx(parmKey, "ReadOnlyVolumeVersioning", NULL, NULL,
+                           (BYTE *) &dwValue, &dummyLen);
+    if (code == ERROR_SUCCESS) {
+        cm_readonlyVolumeVersioning = (unsigned short) dwValue;
+    }
+    afsi_log("CM ReadOnlyVolumeVersioning is %u", cm_readonlyVolumeVersioning);
+
     RegCloseKey (parmKey);
 
     cacheBlocks = ((afs_uint64)cacheSize * 1024) / blockSize;
diff --git a/src/WINNT/afsd/cm_callback.c b/src/WINNT/afsd/cm_callback.c
index 0b94d40f1d..f8f587cf46 100644
--- a/src/WINNT/afsd/cm_callback.c
+++ b/src/WINNT/afsd/cm_callback.c
@@ -1576,7 +1576,8 @@ int cm_HaveCallback(cm_scache_t *scp)
         return 0;
     }
 #endif
-    if (scp->flags & CM_SCACHEFLAG_PURERO) {
+    if (cm_readonlyVolumeVersioning &&
+        (scp->flags & CM_SCACHEFLAG_PURERO)) {
         cm_volume_t *volp = cm_GetVolumeByFID(&scp->fid);
         if (volp) {
             int haveCB = 0;
diff --git a/src/WINNT/afsd/cm_scache.c b/src/WINNT/afsd/cm_scache.c
index bee91c4904..9c1dd73ce3 100644
--- a/src/WINNT/afsd/cm_scache.c
+++ b/src/WINNT/afsd/cm_scache.c
@@ -1635,7 +1635,8 @@ void cm_MergeStatus(cm_scache_t *dscp,
             goto done;
     }       
 
-    scp->volumeCreationDate = volsyncp->spare1;       /* volume creation date */
+    if (cm_readonlyVolumeVersioning)
+        scp->volumeCreationDate = volsyncp->spare1;       /* volume creation date */
 
     scp->serverModTime = statusp->ServerModTime;
 
@@ -1805,6 +1806,7 @@ void cm_DiscardSCache(cm_scache_t *scp)
 	scp->cbServerp = NULL;
     }
     scp->cbExpires = 0;
+    scp->volumeCreationDate = 0;
     scp->flags &= ~(CM_SCACHEFLAG_CALLBACK | CM_SCACHEFLAG_LOCAL);
     cm_dnlcPurgedp(scp);
     cm_dnlcPurgevp(scp);